Index of language articles

This is a partial index of Wikipedia articles treating natural languages, arranged alphabetically and with (sub-) families mentioned. The list also includes extinct languages.

For a published list of languages, see ISO 639-1 (list of ISO 639 language codes for 136 major languages), or for a more inclusive list, see ISO 639-3 (list of ISO 639-3 codes, 7,874 in total as of June 2013). The enumeration of languages and dialects can easily be taken into the five-digit range; the Linguasphere Observatory has a database (LS-2010) with more than 32,800 coded entries and more than 70,900 linguistic names.

List


{| class="sortable wikitable" ! width="250px" | Language !! Group
 * colspan="2"|
 * colspan="2"|

!

 * !Xóõ or Taa || Khoisan
 * colspan="2"|
 * colspan="2"|
 * colspan="2"|

'

 * 'Are'are || Malayo-Polynesian
 * 'Auhelawa || Malayo-Polynesian
 * colspan="2"|
 * 'Auhelawa || Malayo-Polynesian
 * colspan="2"|
 * colspan="2"|

A

 * A-Pucikwar || Great Andamanese
 * A'Tong || Tibeto-Burman
 * Aari || Omotic
 * Abanyom || Bantu
 * Abaza || Northwest Caucasian
 * Abenaki || Eastern Algonquian
 * Abkhaz or Abkhazian || Northwest Caucasian
 * Abujmaria or Madiya or Maria || Dravidian
 * Acehnese || Malayo-Polynesian
 * Adamorobe Sign Language || Language isolate
 * Adele || Kwa
 * Adyghe or West Circassian || Northwest Caucasian
 * Afar || Cushitic
 * Afrikaans || Germanic
 * Afro-Seminole Creole || English-based creole
 * Aguaruna || Chicham
 * Ahom || Kra–Dai
 * Aimaq or Barbari || Iranian
 * Ainu, Hokkaido || Ainu
 * Ainu, Kuril || Ainu
 * Ainu, Sakhalin || Ainu
 * Ajawa || Chadic
 * Ajem-Turkic or Ajami Turkic || Turkic
 * Aka-Bea || Great Andamanese
 * Aka-Bo || Great Andamanese
 * Aka-Cari || Great Andamanese
 * Aka-Jeru || Great Andamanese
 * Aka-Kede || Great Andamanese
 * Aka-Kol || Great Andamanese
 * Aka-Kora || Great Andamanese
 * Akan || Kwa
 * Akar-Bale || Great Andamanese
 * Akateko || Mayan
 * Akawaio || Cariban
 * Akkadian || Semitic
 * Aklanon || Bisayan
 * Alabama || Muskogean
 * Albanian || Indo-European
 * Alchuka || Tungusic
 * Aleut || Eskimo–Aleut
 * Algonquin || Algonquian
 * Alsatian || Germanic
 * Altay || Turkic
 * Alyutor or Alutor || Chukotko-Kamchatkan
 * Alzenau German || Germanic
 * Amdang || Nilo-Saharan
 * American Sign Language || Francosign
 * Amharic || Semitic
 * Ammonite || Semitic
 * Amorite || Semitic
 * Amuzgo || Oto-Manguean
 * Angami Naga Sign Language || Language isolate
 * Angika || Indo-Aryan
 * Anyin || Kwa
 * Ao || Tibeto-Burman
 * Aquitanian || Basque
 * Arabic || Semitic
 * Arabic, Algerian || Semitic
 * Arabic, Algerian Saharan || Semitic
 * Arabic, Anatolian || Semitic
 * Arabic, Andalusian or Andalusi Arabic || Semitic
 * Arabic, Bahrani || Semitic
 * Arabic, Bareqi || Semitic
 * Arabic, Bimbashi or Mongallese || Semitic
 * Arabic, Central Asian || Semitic
 * Arabic, Chadian || Semitic
 * Arabic, Classical || Semitic
 * Arabic, Cypriot || Semitic
 * Arabic, Dhofari || Semitic
 * Arabic, Egyptian || Semitic
 * Arabic, Gilit || Semitic
 * Arabic, Gulf || Semitic
 * Arabic, Hadhrami || Semitic
 * Arabic, Hassaniya || Semitic
 * Arabic, Hejazi || Semitic
 * Arabic, Jebli || Semitic
 * Arabic, Jijel || Semitic
 * Arabic, Juba or South Sudanese Arabic || Semitic
 * Arabic, Judeo-Iraqi or Yahudic || Semitic
 * Arabic, Judeo-Moroccan || Semitic
 * Arabic, Judeo-Tripolitanian || Semitic
 * Arabic, Judeo-Yemeni || Semitic
 * Arabic, Khuzestani || Semitic
 * Arabic, Levantine || Semitic
 * Arabic, Libyan || Semitic
 * Arabic, Maridi || Semitic
 * Arabic, Modern Standard || Semitic
 * Arabic, Moroccan || Semitic
 * Arabic, Nabataean || Semitic
 * Arabic, Najdi || Semitic
 * Arabic, Qeltu or North Mesopotamian Arabic || Semitic
 * Arabic, Northwest Arabian, Levantine Bedawi Arabic, or Eastern Egyptian Bedawi Arabic || Semitic
 * Arabic, Nubi or Ki-Nubi || Semitic
 * Arabic, Omani || Semitic
 * Arabic, Sanʽani || Semitic
 * Arabic, Saʽidi || Semitic
 * Arabic, Shihhi || Semitic
 * Arabic, Shirvani || Semitic
 * Arabic, Sicilian or Siculo-Arabic || Semitic
 * Arabic, Sudanese || Semitic
 * Arabic, Taʽizzi-Adeni or Southern Yemeni Arabic || Semitic
 * Arabic, Tihamiyya || Semitic
 * Arabic, Tunisian || Semitic
 * Aragonese || Romance
 * Aramaic || Semitic
 * Are || Malayo-Polynesian
 * Argobba || Semitic
 * Arin || Yeniseian
 * Aromanian || Romance
 * Armazic || Semitic
 * Armenian || Indo-European
 * Armenian, Eastern || Armenian
 * Armenian, Western || Armenian
 * Arvanitika or Arvanitic || Albanian
 * Ashkun || Indo-Iranian
 * Assamese || Indo-Iranian
 * Assyrian Neo-Aramaic || Semitic
 * Ateso or Teso || Nilotic
 * Asháninka || Arawakan
 * Ashokan Prakrit || Indo-Aryan
 * Asi || Malayo-Polynesian
 * Asturian || Romance
 * Asturleonese || Romance
 * Auslan || BANZSL
 * Austro-Bavarian || Germanic
 * Avar || Northeast Caucasian
 * Avestan || Iranian
 * Awadhi || Indo-Iranian
 * Aymara || Aymaran
 * Äynu || Turkic
 * Ayoreo || Zamucoan
 * Azerbaijani or Azeri || Turkic
 * colspan="2"|
 * Arabic, Classical || Semitic
 * Arabic, Cypriot || Semitic
 * Arabic, Dhofari || Semitic
 * Arabic, Egyptian || Semitic
 * Arabic, Gilit || Semitic
 * Arabic, Gulf || Semitic
 * Arabic, Hadhrami || Semitic
 * Arabic, Hassaniya || Semitic
 * Arabic, Hejazi || Semitic
 * Arabic, Jebli || Semitic
 * Arabic, Jijel || Semitic
 * Arabic, Juba or South Sudanese Arabic || Semitic
 * Arabic, Judeo-Iraqi or Yahudic || Semitic
 * Arabic, Judeo-Moroccan || Semitic
 * Arabic, Judeo-Tripolitanian || Semitic
 * Arabic, Judeo-Yemeni || Semitic
 * Arabic, Khuzestani || Semitic
 * Arabic, Levantine || Semitic
 * Arabic, Libyan || Semitic
 * Arabic, Maridi || Semitic
 * Arabic, Modern Standard || Semitic
 * Arabic, Moroccan || Semitic
 * Arabic, Nabataean || Semitic
 * Arabic, Najdi || Semitic
 * Arabic, Qeltu or North Mesopotamian Arabic || Semitic
 * Arabic, Northwest Arabian, Levantine Bedawi Arabic, or Eastern Egyptian Bedawi Arabic || Semitic
 * Arabic, Nubi or Ki-Nubi || Semitic
 * Arabic, Omani || Semitic
 * Arabic, Sanʽani || Semitic
 * Arabic, Saʽidi || Semitic
 * Arabic, Shihhi || Semitic
 * Arabic, Shirvani || Semitic
 * Arabic, Sicilian or Siculo-Arabic || Semitic
 * Arabic, Sudanese || Semitic
 * Arabic, Taʽizzi-Adeni or Southern Yemeni Arabic || Semitic
 * Arabic, Tihamiyya || Semitic
 * Arabic, Tunisian || Semitic
 * Aragonese || Romance
 * Aramaic || Semitic
 * Are || Malayo-Polynesian
 * Argobba || Semitic
 * Arin || Yeniseian
 * Aromanian || Romance
 * Armazic || Semitic
 * Armenian || Indo-European
 * Armenian, Eastern || Armenian
 * Armenian, Western || Armenian
 * Arvanitika or Arvanitic || Albanian
 * Ashkun || Indo-Iranian
 * Assamese || Indo-Iranian
 * Assyrian Neo-Aramaic || Semitic
 * Ateso or Teso || Nilotic
 * Asháninka || Arawakan
 * Ashokan Prakrit || Indo-Aryan
 * Asi || Malayo-Polynesian
 * Asturian || Romance
 * Asturleonese || Romance
 * Auslan || BANZSL
 * Austro-Bavarian || Germanic
 * Avar || Northeast Caucasian
 * Avestan || Iranian
 * Awadhi || Indo-Iranian
 * Aymara || Aymaran
 * Äynu || Turkic
 * Ayoreo || Zamucoan
 * Azerbaijani or Azeri || Turkic
 * colspan="2"|
 * Arabic, Taʽizzi-Adeni or Southern Yemeni Arabic || Semitic
 * Arabic, Tihamiyya || Semitic
 * Arabic, Tunisian || Semitic
 * Aragonese || Romance
 * Aramaic || Semitic
 * Are || Malayo-Polynesian
 * Argobba || Semitic
 * Arin || Yeniseian
 * Aromanian || Romance
 * Armazic || Semitic
 * Armenian || Indo-European
 * Armenian, Eastern || Armenian
 * Armenian, Western || Armenian
 * Arvanitika or Arvanitic || Albanian
 * Ashkun || Indo-Iranian
 * Assamese || Indo-Iranian
 * Assyrian Neo-Aramaic || Semitic
 * Ateso or Teso || Nilotic
 * Asháninka || Arawakan
 * Ashokan Prakrit || Indo-Aryan
 * Asi || Malayo-Polynesian
 * Asturian || Romance
 * Asturleonese || Romance
 * Auslan || BANZSL
 * Austro-Bavarian || Germanic
 * Avar || Northeast Caucasian
 * Avestan || Iranian
 * Awadhi || Indo-Iranian
 * Aymara || Aymaran
 * Äynu || Turkic
 * Ayoreo || Zamucoan
 * Azerbaijani or Azeri || Turkic
 * colspan="2"|
 * Assyrian Neo-Aramaic || Semitic
 * Ateso or Teso || Nilotic
 * Asháninka || Arawakan
 * Ashokan Prakrit || Indo-Aryan
 * Asi || Malayo-Polynesian
 * Asturian || Romance
 * Asturleonese || Romance
 * Auslan || BANZSL
 * Austro-Bavarian || Germanic
 * Avar || Northeast Caucasian
 * Avestan || Iranian
 * Awadhi || Indo-Iranian
 * Aymara || Aymaran
 * Äynu || Turkic
 * Ayoreo || Zamucoan
 * Azerbaijani or Azeri || Turkic
 * colspan="2"|
 * Avar || Northeast Caucasian
 * Avestan || Iranian
 * Awadhi || Indo-Iranian
 * Aymara || Aymaran
 * Äynu || Turkic
 * Ayoreo || Zamucoan
 * Azerbaijani or Azeri || Turkic
 * colspan="2"|
 * Äynu || Turkic
 * Ayoreo || Zamucoan
 * Azerbaijani or Azeri || Turkic
 * colspan="2"|
 * Azerbaijani or Azeri || Turkic
 * colspan="2"|
 * colspan="2"|
 * colspan="2"|

B

 * Babuza || Western Plains Formosan
 * Bactrian || Iranian
 * Badaga || Dravidian
 * Badeshi || Indo-Iranian
 * Baekje || Unclassified language, perhaps Koreanic, Puyŏ, and/or Han
 * Bahnar || Austroasiatic
 * Bailang || Lolo-Burmese
 * Bala || Tungusic
 * Balinese || Malayo-Polynesian
 * Balochi || Indo-Iranian
 * Balti || Tibeto-Burman
 * Bambara or Bamanankan || Mande
 * Banjar || Malayo-Polynesian
 * Banyumasan || Malayo-Polynesian
 * Barranquenho or Barranquenhu || Alentejan Portuguese, Extremaduran Spanish, and Andalusian Spanish-based mixed language
 * Bartangi || Iranian
 * Basaa || Bantu
 * Basay || East Formosan
 * Bashkardi || Iranian
 * Bashkir || Turkic
 * Ba–Shu Chinese || Sinitic
 * Basque or Euskara/Euskera || Language isolate
 * Batak Karo || Malayo-Polynesian
 * Batak Toba || Malayo-Polynesian
 * Bats || North Caucasian
 * Bawean and Bawean Creole || Madurese
 * Beja || Cushitic
 * Belarusian || Slavic
 * Belhare || Tibeto-Burman
 * Berta || Nilo-Saharan
 * Bemba || Bantu
 * Bengali || Indo-Aryan
 * Bezhta || Northeast Caucasian
 * Berber || Afroasiatic
 * Betawi || Malayo-Polynesian
 * Bete || Niger–Congo
 * Bété || Niger–Congo
 * Bhili || Indo-Aryan
 * Bhojpuri || Indo-Aryan
 * Bijil Neo-Aramaic || Semitic
 * Bikol || Malayo-Polynesian
 * Bikya or Furu || Bantu
 * Bissa || Mande
 * Blackfoot || Algonquian
 * Bodo || Bodo
 * Boholano || Malayo-Polynesian
 * Bohtan Neo-Aramaic || Semitic
 * Bonan or Paoan || Mongolic
 * Bororo || Bororoan
 * Bosnian || Slavic
 * Brahui || Dravidian
 * Breton || Celtic
 * British Sign Language || BANZSL
 * Bru || Austroasiatic
 * Bua || Niger–Congo
 * Buginese || Malayo-Polynesian
 * Bukusu || Bantu
 * Bulgar || Turkic
 * Bulgarian || Slavic
 * Bunjevac || Slavic
 * Burmese || Tibeto-Burman
 * Burushaski || Language isolate
 * Buryat || Mongolic
 * Buyeo || Puyŏ
 * colspan="2"|
 * Bezhta || Northeast Caucasian
 * Berber || Afroasiatic
 * Betawi || Malayo-Polynesian
 * Bete || Niger–Congo
 * Bété || Niger–Congo
 * Bhili || Indo-Aryan
 * Bhojpuri || Indo-Aryan
 * Bijil Neo-Aramaic || Semitic
 * Bikol || Malayo-Polynesian
 * Bikya or Furu || Bantu
 * Bissa || Mande
 * Blackfoot || Algonquian
 * Bodo || Bodo
 * Boholano || Malayo-Polynesian
 * Bohtan Neo-Aramaic || Semitic
 * Bonan or Paoan || Mongolic
 * Bororo || Bororoan
 * Bosnian || Slavic
 * Brahui || Dravidian
 * Breton || Celtic
 * British Sign Language || BANZSL
 * Bru || Austroasiatic
 * Bua || Niger–Congo
 * Buginese || Malayo-Polynesian
 * Bukusu || Bantu
 * Bulgar || Turkic
 * Bulgarian || Slavic
 * Bunjevac || Slavic
 * Burmese || Tibeto-Burman
 * Burushaski || Language isolate
 * Buryat || Mongolic
 * Buyeo || Puyŏ
 * colspan="2"|
 * Bosnian || Slavic
 * Brahui || Dravidian
 * Breton || Celtic
 * British Sign Language || BANZSL
 * Bru || Austroasiatic
 * Bua || Niger–Congo
 * Buginese || Malayo-Polynesian
 * Bukusu || Bantu
 * Bulgar || Turkic
 * Bulgarian || Slavic
 * Bunjevac || Slavic
 * Burmese || Tibeto-Burman
 * Burushaski || Language isolate
 * Buryat || Mongolic
 * Buyeo || Puyŏ
 * colspan="2"|
 * Bulgar || Turkic
 * Bulgarian || Slavic
 * Bunjevac || Slavic
 * Burmese || Tibeto-Burman
 * Burushaski || Language isolate
 * Buryat || Mongolic
 * Buyeo || Puyŏ
 * colspan="2"|
 * Burushaski || Language isolate
 * Buryat || Mongolic
 * Buyeo || Puyŏ
 * colspan="2"|
 * Buyeo || Puyŏ
 * colspan="2"|
 * colspan="2"|
 * colspan="2"|

C

 * Caluyanon or Caluyanun || Malayo-Polynesian
 * Canaano-Akkadian || Akkadian and Canaanite-based mixed language
 * Cantonese || Sinitic
 * Cape Verdean Creole or Kabuverdianu || Portuguese-based creole
 * Carrier or Dakelh || Athabaskan
 * Catalan || Romance
 * Catalan Sign Language || Catalan Sign
 * Cavineña || Tacanan
 * Cayuga || Iroquoian
 * Cebuano || Malayo-Polynesian
 * Chabacano or Chavacano || Creole (Spanish-based)
 * Chaga or Kichagga || Bantu
 * Chagatai || Turkic
 * Chakavian || Slavic
 * Chakma || Indo-Aryan
 * Chaldean Neo-Aramaic || Semitic
 * Cham || Chamic
 * Chamorro or Chamoru || Malayo-Polynesian
 * Chaouia or Tachawit || Berber
 * Chatino || Oto-Manguean
 * Chechen || Northeast Caucasian
 * Chenchu || Dravidian
 * Chenoua || Berber
 * Cherokee || Iroquoian
 * Cheyenne || Algonquian
 * Chhattisgarhi || Indo-Aryan
 * Chichimeca Jonaz || Oto-Manguean
 * Chickasaw || Muskogean
 * Chinese Kyakala || Tungusic
 * Chintang or Chhintang || Kiranti
 * Chilcotin or Tsilhqot'in || Athabaskan
 * Chinantec || Oto-Manguean
 * Chinese || Sinitic
 * Chinese Kyakala || Tungusic
 * Chiricahua or Mescalero-Chiricahua Apache || Athabaskan
 * Chichewa or Nyanja || Bantu
 * Chimané or Tsimané or Mosetén || Language isolate
 * Chipaya || Uru-Chipaya
 * Chipewyan || Athabaskan
 * Chiquimulilla || Xincan
 * Chiquitano || Language isolate
 * Chittagonian || Indo-Aryan
 * Chocho or Chocholtec || Oto-Manguean
 * Choctaw || Muskogean
 * Ch'ol || Mayan
 * Chontal de Oaxaca || Tequistlatecan
 * Chontal de Tabasco || Mayan
 * Chorasmian or Khwarezmian || Iranian
 * Christian Palestinian Aramaic || Semitic
 * Chuj || Mayan
 * Chukchi or Chukot || Chukotko-Kamchatkan
 * Chulym || Turkic
 * Church Slavonic || Slavic
 * Chuukese or Trukese || Malayo-Polynesian
 * Chuvan || Yukaghir
 * Chuvash || Turkic
 * Cochin Portuguese Creole or Vypin Indo-Portuguese || Portuguese-based creole language
 * Cocoma or Cocama || Tupian
 * Cocopah || Yuman-Cochimí
 * Coeur d’Alene || Salishan
 * Comanche || Uto-Aztecan
 * Comorian || Bantu
 * Coptic || Egyptian
 * Cora || Uto-Aztecan
 * Cornish || Celtic
 * Corsican || Romance
 * Cree || Algonquian
 * Cree, East or James Bay Cree || Algonquian
 * Cree, Moose || Algonquian
 * Cree, Plains || Algonquian
 * Cree, Swampy || Algonquian
 * Cree, Woods or Woodland Cree || Algonquian
 * Crimean Tatar or Crimean Turkish || Turkic
 * Croatian || Slavic
 * Cuicatec || Oto-Manguean
 * Cuyonon || Malayo-Polynesian
 * Czech || Slavic
 * colspan="2"|
 * Chiquimulilla || Xincan
 * Chiquitano || Language isolate
 * Chittagonian || Indo-Aryan
 * Chocho or Chocholtec || Oto-Manguean
 * Choctaw || Muskogean
 * Ch'ol || Mayan
 * Chontal de Oaxaca || Tequistlatecan
 * Chontal de Tabasco || Mayan
 * Chorasmian or Khwarezmian || Iranian
 * Christian Palestinian Aramaic || Semitic
 * Chuj || Mayan
 * Chukchi or Chukot || Chukotko-Kamchatkan
 * Chulym || Turkic
 * Church Slavonic || Slavic
 * Chuukese or Trukese || Malayo-Polynesian
 * Chuvan || Yukaghir
 * Chuvash || Turkic
 * Cochin Portuguese Creole or Vypin Indo-Portuguese || Portuguese-based creole language
 * Cocoma or Cocama || Tupian
 * Cocopah || Yuman-Cochimí
 * Coeur d’Alene || Salishan
 * Comanche || Uto-Aztecan
 * Comorian || Bantu
 * Coptic || Egyptian
 * Cora || Uto-Aztecan
 * Cornish || Celtic
 * Corsican || Romance
 * Cree || Algonquian
 * Cree, East or James Bay Cree || Algonquian
 * Cree, Moose || Algonquian
 * Cree, Plains || Algonquian
 * Cree, Swampy || Algonquian
 * Cree, Woods or Woodland Cree || Algonquian
 * Crimean Tatar or Crimean Turkish || Turkic
 * Croatian || Slavic
 * Cuicatec || Oto-Manguean
 * Cuyonon || Malayo-Polynesian
 * Czech || Slavic
 * colspan="2"|
 * Cocopah || Yuman-Cochimí
 * Coeur d’Alene || Salishan
 * Comanche || Uto-Aztecan
 * Comorian || Bantu
 * Coptic || Egyptian
 * Cora || Uto-Aztecan
 * Cornish || Celtic
 * Corsican || Romance
 * Cree || Algonquian
 * Cree, East or James Bay Cree || Algonquian
 * Cree, Moose || Algonquian
 * Cree, Plains || Algonquian
 * Cree, Swampy || Algonquian
 * Cree, Woods or Woodland Cree || Algonquian
 * Crimean Tatar or Crimean Turkish || Turkic
 * Croatian || Slavic
 * Cuicatec || Oto-Manguean
 * Cuyonon || Malayo-Polynesian
 * Czech || Slavic
 * colspan="2"|
 * Cree, Moose || Algonquian
 * Cree, Plains || Algonquian
 * Cree, Swampy || Algonquian
 * Cree, Woods or Woodland Cree || Algonquian
 * Crimean Tatar or Crimean Turkish || Turkic
 * Croatian || Slavic
 * Cuicatec || Oto-Manguean
 * Cuyonon || Malayo-Polynesian
 * Czech || Slavic
 * colspan="2"|
 * Croatian || Slavic
 * Cuicatec || Oto-Manguean
 * Cuyonon || Malayo-Polynesian
 * Czech || Slavic
 * colspan="2"|
 * Czech || Slavic
 * colspan="2"|
 * colspan="2"|
 * colspan="2"|

D

 * Dadanitic || Semitic
 * Dagaare || Niger-Congo
 * Dagbani || Gur
 * Dahlik || Semitic
 * Dalecarlian || Germanic
 * Dalmatian || Romance
 * Dameli || Indo-Aryan
 * Danish || Germanic
 * Dargin || Northeast Caucasian
 * Dari or Dari Persian || Iranian
 * Daur or Dagur || Mongolic
 * Daylami || Iranian
 * Dena'ina or Tanaina || Athapaskan
 * Dhatki || Indo-Aryan
 * Dhivehi or Maldivian || Indo-Aryan
 * Dicamay Agta || Northern Luzon
 * Dida || Kru
 * Dioula or Jula || Mande
 * Dogri || Indo-Aryan
 * Dogrib or Tli Cho || Athapaskan
 * Dolgan || Turkic
 * Domaaki or Dumaki || Indo-Aryan
 * Dongxiang or Santa || Mongolic
 * Duala || Bantu
 * Dungan || Sinitic
 * Dura || Greater Magaric
 * Dutch || Germanic
 * Dzhidi or Judeo-Persian || Iranian
 * Dzongkha || Tibetic
 * colspan="2"|
 * Dicamay Agta || Northern Luzon
 * Dida || Kru
 * Dioula or Jula || Mande
 * Dogri || Indo-Aryan
 * Dogrib or Tli Cho || Athapaskan
 * Dolgan || Turkic
 * Domaaki or Dumaki || Indo-Aryan
 * Dongxiang or Santa || Mongolic
 * Duala || Bantu
 * Dungan || Sinitic
 * Dura || Greater Magaric
 * Dutch || Germanic
 * Dzhidi or Judeo-Persian || Iranian
 * Dzongkha || Tibetic
 * colspan="2"|
 * Dongxiang or Santa || Mongolic
 * Duala || Bantu
 * Dungan || Sinitic
 * Dura || Greater Magaric
 * Dutch || Germanic
 * Dzhidi or Judeo-Persian || Iranian
 * Dzongkha || Tibetic
 * colspan="2"|
 * Dutch || Germanic
 * Dzhidi or Judeo-Persian || Iranian
 * Dzongkha || Tibetic
 * colspan="2"|
 * Dzongkha || Tibetic
 * colspan="2"|
 * colspan="2"|

E

 * Eblaite || Semitic
 * Edomite || Semitic
 * Egyptian || Afroasiatic
 * Ekoti || Bantu
 * Elfdalian || Germanic
 * Enets or Yenisey Samoyed || Samoyedic
 * English || Germanic
 * Erzya || Uralic
 * Estonian || Uralic
 * Even || Tungusic
 * Evenk or Evenki || Tungusic
 * Ewe || Volta–Niger
 * Extremaduran || Romance
 * colspan="2"|
 * Erzya || Uralic
 * Estonian || Uralic
 * Even || Tungusic
 * Evenk or Evenki || Tungusic
 * Ewe || Volta–Niger
 * Extremaduran || Romance
 * colspan="2"|
 * Evenk or Evenki || Tungusic
 * Ewe || Volta–Niger
 * Extremaduran || Romance
 * colspan="2"|
 * Extremaduran || Romance
 * colspan="2"|
 * colspan="2"|

F

 * Faetar or Faetar–Cigliàje || Romance
 * Faifi || Semitic
 * Faliscan || Latino-Faliscan
 * Fang || Bantu
 * Faroese || Germanic
 * Favorlang || Western Plains Formosan
 * Fijian || Malayo-Polynesian
 * Filipino || Central Philippine
 * Finland-Swedish Sign Language || Swedish Sign
 * Finnish || Uralic
 * Finnish Sign Language || Swedish Sign
 * Flemish || Germanic
 * Flemish, East || Germanic
 * Flemish, French || Germanic
 * Flemish, West || Germanic
 * Foodo || Kwa
 * Fon || Kwa
 * Franco-Provençal or Arpitan || Romance
 * French || Romance
 * French Sign Language || Francosign
 * Frisian, East || Germanic
 * Frisian, Hindeloopen || Germanic
 * Frisian, North || Germanic
 * Frisian, Saterland || Germanic
 * Frisian, Schiermonnikoog || Germanic
 * Frisian, Terschelling || Germanic
 * Frisian, West or Mainland West Frisian|| Germanic
 * Friulian || Romance
 * Fula, Fulfulde, or Fulani || Senegambian
 * Fur || Nilo-Saharan
 * Futunan || Polynesian
 * Futuna-Aniwa || Polynesian
 * colspan="2"|
 * Fon || Kwa
 * Franco-Provençal or Arpitan || Romance
 * French || Romance
 * French Sign Language || Francosign
 * Frisian, East || Germanic
 * Frisian, Hindeloopen || Germanic
 * Frisian, North || Germanic
 * Frisian, Saterland || Germanic
 * Frisian, Schiermonnikoog || Germanic
 * Frisian, Terschelling || Germanic
 * Frisian, West or Mainland West Frisian|| Germanic
 * Friulian || Romance
 * Fula, Fulfulde, or Fulani || Senegambian
 * Fur || Nilo-Saharan
 * Futunan || Polynesian
 * Futuna-Aniwa || Polynesian
 * colspan="2"|
 * Frisian, Terschelling || Germanic
 * Frisian, West or Mainland West Frisian|| Germanic
 * Friulian || Romance
 * Fula, Fulfulde, or Fulani || Senegambian
 * Fur || Nilo-Saharan
 * Futunan || Polynesian
 * Futuna-Aniwa || Polynesian
 * colspan="2"|
 * Fur || Nilo-Saharan
 * Futunan || Polynesian
 * Futuna-Aniwa || Polynesian
 * colspan="2"|
 * Futuna-Aniwa || Polynesian
 * colspan="2"|
 * colspan="2"|
 * colspan="2"|

G

 * Ga || Kwa
 * Gadaba || Dravidian
 * Gagauz || Turkic
 * Galatian || Celtic
 * Galician || Romance
 * Galindian || Baltic
 * Gan Chinese || Sinitic
 * Ganda || Bantu
 * Gangte || Kuki-Chin
 * Garhwali || Indo-Aryan
 * Gaya || Unclassified language
 * Gayo || Malayo-Polynesian
 * Gen or Gẽ or Mina || Volta–Niger
 * Georgian || South Caucasian
 * German || Germanic
 * German Sign Language || DGSic
 * Gikuyu or Kikuyu || Bantu
 * Gilbertese or Kiribati || Malayo-Polynesian
 * Gilaki || Iranian
 * Gitxsan || Tsimshianic
 * Goaria || Indo-Aryan
 * Goguryeo || Puyŏ
 * Gondi || Dravidian
 * Gorani language (Našinski) || Slavic
 * Gorani or Hawrami || Kurdish
 * Gawar-Bati or Gowari or Narsati || Indo-Aryan
 * Greenlandic or Kalaallisut || Eskaleut
 * Greenlandic Norse || Germanic
 * Greek || Hellenic
 * Greek, Aeolic || Hellenic
 * Greek, Apulian or Griko || Hellenic
 * Greek, Ancient Macedonian || Hellenic
 * Greek, Arcadocypriot || Hellenic
 * Greek, Attic || Hellenic
 * Greek, Byzantine or Medieval Greek || Hellenic
 * Greek, Calabrian || Hellenic
 * Greek, Cappadocian || Hellenic
 * Greek, Cypriot || Hellenic
 * Greek, Doric or West Greek || Hellenic
 * Greek, Homeric or Epic Greek || Hellenic
 * Greek, Ionic || Hellenic
 * Greek, Italiot || Hellenic
 * Greek, Jewish Koine || Hellenic
 * Greek, Koine || Hellenic
 * Greek, Mariupolitan or Crimean Greek || Hellenic
 * Greek, Mycenaean || Hellenic
 * Greek, Pamphylian || Hellenic
 * Greek, Pontic || Hellenic
 * Greek, Romani || Hellenic
 * Greek, Tsakonian || Hellenic
 * Greek, Yevanic || Hellenic
 * Guaraní || Tupian
 * Guaruyu || Tupian
 * Guazacapán || Xincan
 * Guinea-Bissau Creole || Portuguese-based creole
 * Gujarati || Indo-Aryan
 * Gula Iro or Kulaal || Adamawa
 * Gullah or Sea Island Creole English || English-based creole
 * Gusii || Bantu
 * Gwichʼin || Athabaskan
 * colspan="2"|
 * Greek, Apulian or Griko || Hellenic
 * Greek, Ancient Macedonian || Hellenic
 * Greek, Arcadocypriot || Hellenic
 * Greek, Attic || Hellenic
 * Greek, Byzantine or Medieval Greek || Hellenic
 * Greek, Calabrian || Hellenic
 * Greek, Cappadocian || Hellenic
 * Greek, Cypriot || Hellenic
 * Greek, Doric or West Greek || Hellenic
 * Greek, Homeric or Epic Greek || Hellenic
 * Greek, Ionic || Hellenic
 * Greek, Italiot || Hellenic
 * Greek, Jewish Koine || Hellenic
 * Greek, Koine || Hellenic
 * Greek, Mariupolitan or Crimean Greek || Hellenic
 * Greek, Mycenaean || Hellenic
 * Greek, Pamphylian || Hellenic
 * Greek, Pontic || Hellenic
 * Greek, Romani || Hellenic
 * Greek, Tsakonian || Hellenic
 * Greek, Yevanic || Hellenic
 * Guaraní || Tupian
 * Guaruyu || Tupian
 * Guazacapán || Xincan
 * Guinea-Bissau Creole || Portuguese-based creole
 * Gujarati || Indo-Aryan
 * Gula Iro or Kulaal || Adamawa
 * Gullah or Sea Island Creole English || English-based creole
 * Gusii || Bantu
 * Gwichʼin || Athabaskan
 * colspan="2"|
 * Greek, Pamphylian || Hellenic
 * Greek, Pontic || Hellenic
 * Greek, Romani || Hellenic
 * Greek, Tsakonian || Hellenic
 * Greek, Yevanic || Hellenic
 * Guaraní || Tupian
 * Guaruyu || Tupian
 * Guazacapán || Xincan
 * Guinea-Bissau Creole || Portuguese-based creole
 * Gujarati || Indo-Aryan
 * Gula Iro or Kulaal || Adamawa
 * Gullah or Sea Island Creole English || English-based creole
 * Gusii || Bantu
 * Gwichʼin || Athabaskan
 * colspan="2"|
 * Guazacapán || Xincan
 * Guinea-Bissau Creole || Portuguese-based creole
 * Gujarati || Indo-Aryan
 * Gula Iro or Kulaal || Adamawa
 * Gullah or Sea Island Creole English || English-based creole
 * Gusii || Bantu
 * Gwichʼin || Athabaskan
 * colspan="2"|
 * Gullah or Sea Island Creole English || English-based creole
 * Gusii || Bantu
 * Gwichʼin || Athabaskan
 * colspan="2"|
 * Gwichʼin || Athabaskan
 * colspan="2"|
 * colspan="2"|

H

 * Hachijō or shima kotoba || Japonic
 * Hadramautic || Semitic
 * Hadza or Hatsa || Language isolate
 * Haida or Masset || Language isolate or Na-Dené
 * Haitian Creole || French-based creole
 * Hakka || Sinitic
 * Hän || Athabaskan
 * Hani || Lolo-Burmese
 * Harappan || Unclassified language
 * Harari || Semitic
 * Harauti || Indo-Aryan
 * Harsusi || Semitic
 * Haryanavi || Indo-Aryan
 * Harzani || Iranian
 * Hasaitic || Semitic
 * Hattic || Unclassified language
 * Hausa || Chadic
 * Havasupai or Upland Yuman || Hokan
 * Hawaiian || Polynesian
 * Hawaiʻi Sign Language || Language isolate or small language family
 * Hazaragi || Iranian
 * Hebrew || Semitic
 * Hebrew, Ashkenazi || Semitic
 * Hebrew, Biblical || Semitic
 * Hebrew, Italian || Semitic
 * Hebrew, Medieval || Semitic
 * Hebrew, Mishnaic || Semitic
 * Hebrew, Mizrahi || Semitic
 * Hebrew, Modern || Semitic
 * Hebrew, Samaritan || Semitic
 * Hebrew, Sephardi || Semitic
 * Hebrew, Tiberian || Semitic
 * Hebrew, Yemenite || Semitic
 * Herero || Bantu
 * Hértevin || Semitic
 * Hiligaynon || Bisayan
 * Himyaritic || Semitic
 * Hindi || Indo-Aryan
 * Hindustani || Indo-Aryan)
 * Hinukh || Northeast Caucasian
 * Hiri Motu || Motu-based pidgin
 * Hismaic || Semitic
 * Hittite || Anatolian
 * Hixkaryana || Cariban
 * Hmong || Hmong–Mien
 * Hmu || Hmong-Mien
 * Ho || Austroasiatic
 * Hobyót || Semitic
 * Hokkien || Sinitic
 * Hopi || Uto-Aztecan
 * Hoti || Malayo-Polynesian
 * Huastec or Teenek || Mayan
 * Huave || Language isolate
 * Huiliche || Araucanian
 * Hulaulá || Semitic
 * Hungarian || Uralic
 * Hunnic || Unclassified language
 * Hutterisch or Tirolean || Germanic
 * colspan="2"|
 * Hebrew, Samaritan || Semitic
 * Hebrew, Sephardi || Semitic
 * Hebrew, Tiberian || Semitic
 * Hebrew, Yemenite || Semitic
 * Herero || Bantu
 * Hértevin || Semitic
 * Hiligaynon || Bisayan
 * Himyaritic || Semitic
 * Hindi || Indo-Aryan
 * Hindustani || Indo-Aryan)
 * Hinukh || Northeast Caucasian
 * Hiri Motu || Motu-based pidgin
 * Hismaic || Semitic
 * Hittite || Anatolian
 * Hixkaryana || Cariban
 * Hmong || Hmong–Mien
 * Hmu || Hmong-Mien
 * Ho || Austroasiatic
 * Hobyót || Semitic
 * Hokkien || Sinitic
 * Hopi || Uto-Aztecan
 * Hoti || Malayo-Polynesian
 * Huastec or Teenek || Mayan
 * Huave || Language isolate
 * Huiliche || Araucanian
 * Hulaulá || Semitic
 * Hungarian || Uralic
 * Hunnic || Unclassified language
 * Hutterisch or Tirolean || Germanic
 * colspan="2"|
 * Hmong || Hmong–Mien
 * Hmu || Hmong-Mien
 * Ho || Austroasiatic
 * Hobyót || Semitic
 * Hokkien || Sinitic
 * Hopi || Uto-Aztecan
 * Hoti || Malayo-Polynesian
 * Huastec or Teenek || Mayan
 * Huave || Language isolate
 * Huiliche || Araucanian
 * Hulaulá || Semitic
 * Hungarian || Uralic
 * Hunnic || Unclassified language
 * Hutterisch or Tirolean || Germanic
 * colspan="2"|
 * Huave || Language isolate
 * Huiliche || Araucanian
 * Hulaulá || Semitic
 * Hungarian || Uralic
 * Hunnic || Unclassified language
 * Hutterisch or Tirolean || Germanic
 * colspan="2"|
 * Hungarian || Uralic
 * Hunnic || Unclassified language
 * Hutterisch or Tirolean || Germanic
 * colspan="2"|
 * Hutterisch or Tirolean || Germanic
 * colspan="2"|
 * colspan="2"|

I

 * Ibibio || Cross River
 * Iban || Malayic
 * Ibanag || Northern Luzon
 * Icelandic || Germanic
 * Ifè || Yoruboid
 * Igbo or Ibo or Biafra || Igboid
 * Ikalanga or Kalanga || Bantu
 * Ili Turki || Turkic
 * Illyrian || Indo-European
 * Ilokano or Ilocano || Northern Luzon
 * Indonesian || Malayic
 * Indo-Portuguese Creole of Bombay || Portuguese-based creole language
 * Ingrian or Izhorian || Uralic
 * Ingush || Northeast Caucasian
 * Inuktitut || Eskimo–Aleut
 * Inupiaq || Eskimo–Aleut
 * Inuvialuktun || Eskimo–Aleut
 * Iraqw || Cushitic
 * Irish or Irish Gaelic || Celtic
 * Irish Sign Language || Francosign
 * Irula || Dravidian
 * Isan or Northeastern Thai || Kra–Dai
 * Ishkashimi or Ishkashmi || Iranian
 * Istriot || Romance
 * Istro-Romanian || Romance
 * Italian || Romance
 * colspan="2"|
 * Ingush || Northeast Caucasian
 * Inuktitut || Eskimo–Aleut
 * Inupiaq || Eskimo–Aleut
 * Inuvialuktun || Eskimo–Aleut
 * Iraqw || Cushitic
 * Irish or Irish Gaelic || Celtic
 * Irish Sign Language || Francosign
 * Irula || Dravidian
 * Isan or Northeastern Thai || Kra–Dai
 * Ishkashimi or Ishkashmi || Iranian
 * Istriot || Romance
 * Istro-Romanian || Romance
 * Italian || Romance
 * colspan="2"|
 * Irula || Dravidian
 * Isan or Northeastern Thai || Kra–Dai
 * Ishkashimi or Ishkashmi || Iranian
 * Istriot || Romance
 * Istro-Romanian || Romance
 * Italian || Romance
 * colspan="2"|
 * Istro-Romanian || Romance
 * Italian || Romance
 * colspan="2"|
 * Italian || Romance
 * colspan="2"|
 * colspan="2"|

J

 * Jacaltek, Jakalteko or Popti' || Mayan
 * Jalaa || Unclassified language, possibly Niger–Congo
 * Japanese || Japonic
 * Japhug || Sino-Tibetan
 * Jaqaru || Aymaran
 * Jarai || Malayo-Polynesian
 * Javanese || Malayo-Polynesian
 * Jeju || Koreanic
 * Jemez or Towa || Tanoan
 * Jewish Babylonian Aramaic || Aramaic
 * Jewish Neo-Aramaic dialect of Zakho || Semitic
 * Jibbali or Shehri || Semitic
 * Jicarilla || Athabaskan
 * Juang || Austroasiatic
 * Judeo-Georgian || South Caucasian
 * Jumaytepeque || Xincan
 * Jurchen || Tungusic
 * colspan="2"|
 * Jewish Babylonian Aramaic || Aramaic
 * Jewish Neo-Aramaic dialect of Zakho || Semitic
 * Jibbali or Shehri || Semitic
 * Jicarilla || Athabaskan
 * Juang || Austroasiatic
 * Judeo-Georgian || South Caucasian
 * Jumaytepeque || Xincan
 * Jurchen || Tungusic
 * colspan="2"|
 * Juang || Austroasiatic
 * Judeo-Georgian || South Caucasian
 * Jumaytepeque || Xincan
 * Jurchen || Tungusic
 * colspan="2"|
 * Jurchen || Tungusic
 * colspan="2"|
 * colspan="2"|
 * colspan="2"|

K

 * Kaaps || Germanic
 * Kabardian || Northwest Caucasian
 * Kabiye || Gur
 * Kabyle || Berber
 * Kachin or Jingpo || Tibeto-Burman
 * Kaingáng || Jê
 * Kajkavian || Slavic
 * Kalami or Gawri or Dirwali || Indo-Aryan
 * Kalahsa-mun || Indo-Aryan
 * Kalašma || Anatolian
 * Kalmyk || Mongolic
 * Kalto or Nahali || Indo-Aryan
 * Kamassian || Uralic
 * Kamchadal, Eastern || Khukotko-Kamchatkan
 * Kamchadal, Southern || Khukotko-Kamchatkan
 * Kamchadal, Western or Itelmen || Chukotko-Kamchatkan
 * Kankanaey || Northern Luzon
 * Kannada || Dravidian
 * Kanuri || Saharan
 * Kaonde or Chikaonde || Bantu
 * Kapampangan || Malayo-Polynesian
 * Karachay–Balkar || Turkic
 * Karagas || Turkic
 * Karaim || Turkic
 * Karakalpak || Turkic
 * Karelian || Uralic
 * Karen || Tibeto-Burman
 * Kashmiri || Indo-Aryan
 * Kashubian || Slavic
 * Kasiguranin or Casiguran || Central Philippine
 * Kawésqar or Alacaluf || Language isolate
 * Kazakh || Turkic
 * Kerek || Chukotko-Kamchatkan
 * Keres or Keresan || Language isolate or small language family
 * Ket || Yeniseian
 * Khakas || Turkic
 * Khalaj || Turkic
 * Kham or Sheshi || Tibeto-Burman
 * Khandeshi || Indo-Aryan
 * Khanty or Ostyak || Uralic
 * Khasi || Austroasiatic
 * Khitan || Mongolic
 * Khmer || Austroasiatic
 * Khmu || Austroasiatic
 * Khowar || Indo-Aryan
 * Kimatuumbi || Bantu
 * Kinaray-a or Hiraya || Malayo-Polynesian
 * Kinyarwanda || Bantu
 * Kirombo || Bantu
 * Kirundi || Bantu
 * Kivunjo || Bantu
 * Klallam or Clallam || Salishan
 * Koasati or Coushatta || Muskogean
 * Kodava Takk or Kodagu or Coorgi || Dravidian
 * Kohistani or Khili || Indo-Aryan
 * Kolami || Dravidian
 * Komi or Komi-Zyrian || Uralic
 * Konkani || Indo-Aryan
 * Kongo or Kikongo || Bantu
 * Koraga || Dravidian
 * Korandje || Nilo-Saharan
 * Korean || Koreanic
 * Korku || Austroasiatic
 * Korowai || Trans–New Guinea
 * Korwa || Austroasiatic
 * Koryak || Chukotko-Kamchatkan
 * Kosraean || Malayo-Polynesian
 * Kota || Dravidian
 * Koyra Chiini or Western Songhay || Nilo-Saharan
 * Koy Sanjaq Christian Neo-Aramaic || Semitic
 * Koya || Dravidian
 * Krymchak or Judeo-Crimean Tatar || Turkic
 * Kujarge || Unclassified language, perhaps Chadic
 * Kui || Dravidian
 * Kukkuzi || Uralic
 * Kumauni || Indo-Aryan
 * Kumeyaay or Kumiai || Yuma-Cochimí (Hokan?)
 * Kumyk || Turkic
 * Kumzari || Iranian
 * Kung || Khoisan
 * Kurdish || Kurdish
 * Kurukh or Kurux || Dravidian
 * Kusunda || Language isolate
 * Kutenai or Kootenay or Ktunaxa || Language isolate
 * Kuy || Austroasiatic
 * Kven || Uralic
 * Kwak'wala || Wakashan
 * Kwanyama or Ovambo || Bantu
 * Kxoe || Khoe
 * Kyrgyz or Kirghiz || Turkic
 * colspan="2"|
 * Kimatuumbi || Bantu
 * Kinaray-a or Hiraya || Malayo-Polynesian
 * Kinyarwanda || Bantu
 * Kirombo || Bantu
 * Kirundi || Bantu
 * Kivunjo || Bantu
 * Klallam or Clallam || Salishan
 * Koasati or Coushatta || Muskogean
 * Kodava Takk or Kodagu or Coorgi || Dravidian
 * Kohistani or Khili || Indo-Aryan
 * Kolami || Dravidian
 * Komi or Komi-Zyrian || Uralic
 * Konkani || Indo-Aryan
 * Kongo or Kikongo || Bantu
 * Koraga || Dravidian
 * Korandje || Nilo-Saharan
 * Korean || Koreanic
 * Korku || Austroasiatic
 * Korowai || Trans–New Guinea
 * Korwa || Austroasiatic
 * Koryak || Chukotko-Kamchatkan
 * Kosraean || Malayo-Polynesian
 * Kota || Dravidian
 * Koyra Chiini or Western Songhay || Nilo-Saharan
 * Koy Sanjaq Christian Neo-Aramaic || Semitic
 * Koya || Dravidian
 * Krymchak or Judeo-Crimean Tatar || Turkic
 * Kujarge || Unclassified language, perhaps Chadic
 * Kui || Dravidian
 * Kukkuzi || Uralic
 * Kumauni || Indo-Aryan
 * Kumeyaay or Kumiai || Yuma-Cochimí (Hokan?)
 * Kumyk || Turkic
 * Kumzari || Iranian
 * Kung || Khoisan
 * Kurdish || Kurdish
 * Kurukh or Kurux || Dravidian
 * Kusunda || Language isolate
 * Kutenai or Kootenay or Ktunaxa || Language isolate
 * Kuy || Austroasiatic
 * Kven || Uralic
 * Kwak'wala || Wakashan
 * Kwanyama or Ovambo || Bantu
 * Kxoe || Khoe
 * Kyrgyz or Kirghiz || Turkic
 * colspan="2"|
 * Koyra Chiini or Western Songhay || Nilo-Saharan
 * Koy Sanjaq Christian Neo-Aramaic || Semitic
 * Koya || Dravidian
 * Krymchak or Judeo-Crimean Tatar || Turkic
 * Kujarge || Unclassified language, perhaps Chadic
 * Kui || Dravidian
 * Kukkuzi || Uralic
 * Kumauni || Indo-Aryan
 * Kumeyaay or Kumiai || Yuma-Cochimí (Hokan?)
 * Kumyk || Turkic
 * Kumzari || Iranian
 * Kung || Khoisan
 * Kurdish || Kurdish
 * Kurukh or Kurux || Dravidian
 * Kusunda || Language isolate
 * Kutenai or Kootenay or Ktunaxa || Language isolate
 * Kuy || Austroasiatic
 * Kven || Uralic
 * Kwak'wala || Wakashan
 * Kwanyama or Ovambo || Bantu
 * Kxoe || Khoe
 * Kyrgyz or Kirghiz || Turkic
 * colspan="2"|
 * Kurdish || Kurdish
 * Kurukh or Kurux || Dravidian
 * Kusunda || Language isolate
 * Kutenai or Kootenay or Ktunaxa || Language isolate
 * Kuy || Austroasiatic
 * Kven || Uralic
 * Kwak'wala || Wakashan
 * Kwanyama or Ovambo || Bantu
 * Kxoe || Khoe
 * Kyrgyz or Kirghiz || Turkic
 * colspan="2"|
 * Kven || Uralic
 * Kwak'wala || Wakashan
 * Kwanyama or Ovambo || Bantu
 * Kxoe || Khoe
 * Kyrgyz or Kirghiz || Turkic
 * colspan="2"|
 * Kxoe || Khoe
 * Kyrgyz or Kirghiz || Turkic
 * colspan="2"|
 * colspan="2"|
 * colspan="2"|

L

 * Laal || Unclassified language
 * Lacandon || Mayan
 * Ladakhi || Tibeto-Burman
 * Ladin || Romance
 * Ladino or Judeo-Spanish || Romance
 * Lak || Northeast Caucasian
 * Laki || Iranian
 * Lakota or Lakhota or Teton || Siouan
 * Lambadi or Lamani or Banjari || Indo-Aryan
 * Lanuvian || Latino-Faliscan
 * Lao or Laotian || Kra–Dai
 * Larestani || Iranian
 * Latin || Latino-Faliscan
 * Latgalian || Baltic
 * Latvian || Baltic
 * Laz or Lazuri || South Caucasian
 * Lenca, Honduran || Lencan
 * Lenca, Salvadoran || Lencan
 * Leonese || Romance
 * Lezgi or Agul || Northeast Caucasian
 * Ligbi or Ligby || Mande
 * Limburgish || Germanic
 * Lingala || Bantu
 * Lipan || Athabascan
 * Lisan al-Dawat || Indo-Aryan
 * Lishanid Noshan or Lishana Didan || Semitic
 * Lithuanian || Baltic
 * Livonian or Liv || Uralic
 * Livvi-Karelian, Olonets Karelian, or Livvi || Uralic
 * Lobala or Bala || Bantu
 * Lombard || Romance
 * Lotha || Tibeto-Burman
 * Low German || Germanic
 * Lower Sorbian || Slavic
 * Lozi or Silozi || Bantu
 * Ludic or Ludian || Uralic
 * Lunda or Chilunda || Bantu
 * Luri || Iranian
 * Lushootseed || Salishan
 * Lusoga or Soga || Bantu
 * Luvale || Bantu
 * Luwati || Indo-Iranian
 * Luxembourgish || Germanic
 * colspan="2"|
 * Lingala || Bantu
 * Lipan || Athabascan
 * Lisan al-Dawat || Indo-Aryan
 * Lishanid Noshan or Lishana Didan || Semitic
 * Lithuanian || Baltic
 * Livonian or Liv || Uralic
 * Livvi-Karelian, Olonets Karelian, or Livvi || Uralic
 * Lobala or Bala || Bantu
 * Lombard || Romance
 * Lotha || Tibeto-Burman
 * Low German || Germanic
 * Lower Sorbian || Slavic
 * Lozi or Silozi || Bantu
 * Ludic or Ludian || Uralic
 * Lunda or Chilunda || Bantu
 * Luri || Iranian
 * Lushootseed || Salishan
 * Lusoga or Soga || Bantu
 * Luvale || Bantu
 * Luwati || Indo-Iranian
 * Luxembourgish || Germanic
 * colspan="2"|
 * Lower Sorbian || Slavic
 * Lozi or Silozi || Bantu
 * Ludic or Ludian || Uralic
 * Lunda or Chilunda || Bantu
 * Luri || Iranian
 * Lushootseed || Salishan
 * Lusoga or Soga || Bantu
 * Luvale || Bantu
 * Luwati || Indo-Iranian
 * Luxembourgish || Germanic
 * colspan="2"|
 * Lushootseed || Salishan
 * Lusoga or Soga || Bantu
 * Luvale || Bantu
 * Luwati || Indo-Iranian
 * Luxembourgish || Germanic
 * colspan="2"|
 * Luwati || Indo-Iranian
 * Luxembourgish || Germanic
 * colspan="2"|
 * colspan="2"|
 * colspan="2"|

M

 * Macedonian || Slavic
 * Machiguenga || Arawakan
 * Madí or Jamamadí or Kapaná || Arauan
 * Madurese || Malayo-Polynesian
 * Magadhi || Indo-Aryan
 * Maguindanao || Malayo-Polynesian
 * Maithili || Indo-Aryan
 * Makasar || Malayo-Polynesian
 * Makhuwa or Makua || Bantu
 * Makhuwa-Meetto || Bantu
 * Malagasy || Malayo-Polynesian
 * Malay || Malayic
 * Malay, Brunei || Malayic
 * Malayalam || Dravidian
 * Malaysian Sign Language || Francosign
 * Maltese or Maltese Arabic || Semitic
 * Malto or Sauria Paharia || Dravidian
 * Malvi, Malavi, or Ujjaini || Indo-Aryan
 * Mam || Mayan
 * Manchu || Tungusic
 * Mandaic || Semitic
 * Mandarin || Sinitic
 * Mandinka || Mande
 * Mansi or Vogul || Uralic
 * Manx || Celtic
 * Manyika || Bantu
 * Māori || Malayo-Polynesian
 * Mapudungun or Mapuche || Araucanian
 * Maranao || Malayo-Polynesian
 * Marathi || Indo-Aryan
 * Mari or Cheremis || Uralic
 * Maria || Dravidian
 * Marquesan || Malayo-Polynesian
 * Marshallese or Ebon || Malayo-Polynesian
 * Martha's Vineyard Sign Language || Language isolate
 * Masaba || Bantu
 * Masbatenyo or Minasbate || Malayo-Polynesian
 * Median || Iranian
 * Meitei or Manipuri or Meithei || Tibeto-Burman
 * Mauritian Creole or Morisyen || French-based creole
 * Mayan Sign Language || Language isolate or small language family
 * Mayo || Uto-Aztecan
 * Mazandarani or Tabari || Iranian
 * Mazahua || Oto-Manguean
 * Mazatec || Oto-Manguean
 * Meänkieli or Tornedalian Finnish || Uralic
 * Megleno-Romanian || Romance
 * Megrelian or Mingrelian || South Caucasian
 * Mehri or Mahri || Semitic
 * Menominee || Algonquian
 * Mentawai || Malayo-Polynesian
 * Meroitic || Unclassified language, maybe Nilo-Saharan or Language isolate
 * Mescalero || Athabaskan
 * Meru or Kimeru || Bantu
 * Michif || Métis French and Plains Cree-based mixed language
 * Mikasuki or Miccosukee || Muskogean
 * Mi'kmaq or Micmac || Algonquian
 * Minaean || Semitic
 * Minangkabau || Malayo-Polynesian
 * Mirandese || Romance
 * Miskito or Miskitu || Misumalpan
 * Mnong or M'Nong || Austroasiatic
 * Mobilian Jargon || Choctaw and French-based pidgin
 * Moghol || Mongolic
 * Mohawk || Iroquoian
 * Moksha || Uralic
 * Molengue || Bantu
 * Mon || Austroasiatic
 * Middle Mongol || Mongolic
 * Mongolian || Mongolic
 * Mongolian, Classical || Mongolic
 * Mono || Ubangian
 * Mono || Uto-Aztecan
 * Mono || Malayo-Polynesian
 * Montagnais or Innu || Algonquian
 * Montenegrin || Slavic
 * Mopan || Mayan
 * Motu || Papuan Tip
 * Moxo || Arawakan
 * Muher || Semitic
 * Mundari || Austroasiatic
 * Mundurukú || Tupian
 * Munji || Iranian
 * Muong || Austroasiatic
 * Muria || Dravidian
 * Muscogee or Creek || Muskogean
 * colspan="2"|
 * Mazahua || Oto-Manguean
 * Mazatec || Oto-Manguean
 * Meänkieli or Tornedalian Finnish || Uralic
 * Megleno-Romanian || Romance
 * Megrelian or Mingrelian || South Caucasian
 * Mehri or Mahri || Semitic
 * Menominee || Algonquian
 * Mentawai || Malayo-Polynesian
 * Meroitic || Unclassified language, maybe Nilo-Saharan or Language isolate
 * Mescalero || Athabaskan
 * Meru or Kimeru || Bantu
 * Michif || Métis French and Plains Cree-based mixed language
 * Mikasuki or Miccosukee || Muskogean
 * Mi'kmaq or Micmac || Algonquian
 * Minaean || Semitic
 * Minangkabau || Malayo-Polynesian
 * Mirandese || Romance
 * Miskito or Miskitu || Misumalpan
 * Mnong or M'Nong || Austroasiatic
 * Mobilian Jargon || Choctaw and French-based pidgin
 * Moghol || Mongolic
 * Mohawk || Iroquoian
 * Moksha || Uralic
 * Molengue || Bantu
 * Mon || Austroasiatic
 * Middle Mongol || Mongolic
 * Mongolian || Mongolic
 * Mongolian, Classical || Mongolic
 * Mono || Ubangian
 * Mono || Uto-Aztecan
 * Mono || Malayo-Polynesian
 * Montagnais or Innu || Algonquian
 * Montenegrin || Slavic
 * Mopan || Mayan
 * Motu || Papuan Tip
 * Moxo || Arawakan
 * Muher || Semitic
 * Mundari || Austroasiatic
 * Mundurukú || Tupian
 * Munji || Iranian
 * Muong || Austroasiatic
 * Muria || Dravidian
 * Muscogee or Creek || Muskogean
 * colspan="2"|
 * Moksha || Uralic
 * Molengue || Bantu
 * Mon || Austroasiatic
 * Middle Mongol || Mongolic
 * Mongolian || Mongolic
 * Mongolian, Classical || Mongolic
 * Mono || Ubangian
 * Mono || Uto-Aztecan
 * Mono || Malayo-Polynesian
 * Montagnais or Innu || Algonquian
 * Montenegrin || Slavic
 * Mopan || Mayan
 * Motu || Papuan Tip
 * Moxo || Arawakan
 * Muher || Semitic
 * Mundari || Austroasiatic
 * Mundurukú || Tupian
 * Munji || Iranian
 * Muong || Austroasiatic
 * Muria || Dravidian
 * Muscogee or Creek || Muskogean
 * colspan="2"|
 * Mopan || Mayan
 * Motu || Papuan Tip
 * Moxo || Arawakan
 * Muher || Semitic
 * Mundari || Austroasiatic
 * Mundurukú || Tupian
 * Munji || Iranian
 * Muong || Austroasiatic
 * Muria || Dravidian
 * Muscogee or Creek || Muskogean
 * colspan="2"|
 * Munji || Iranian
 * Muong || Austroasiatic
 * Muria || Dravidian
 * Muscogee or Creek || Muskogean
 * colspan="2"|
 * Muria || Dravidian
 * Muscogee or Creek || Muskogean
 * colspan="2"|
 * colspan="2"|
 * colspan="2"|

N

 * Nafaanra || Senufo
 * Nagarchal || Dravidian
 * Nahuatl || Uto-Aztecan
 * Nama or Khoekhoe || Khoe
 * Nanai || Tungusic
 * Nauruan || Micronesian
 * Navajo or Navaho || Na-Dené
 * Ndau or Southeast Shona || Bantu
 * Ndonga || Bantu
 * Neapolitan || Romance
 * Negidal || Tungusic
 * Nenets or Yurak || Samoyedic
 * Nepal Bhasa or Newari || Newaric
 * Nepali || Indo-Aryan
 * New Zealand Sign Language || BANZSL
 * Nihali or Nahali || Language isolate
 * Nisga'a || Tsimshianic
 * Nganasan or Tavgi || Samoyedic
 * Ngumba || Bantu
 * Nheengatu or Geral or Modern Tupí || Tupian
 * Nias || Northwest Sumatra–Barrier Islands
 * Nicaraguan Sign Language || Language isolate
 * Niellim || Adamawa
 * Nigerian Pidgin || English-based pidgin
 * Nisenan || Maiduan
 * Niuean or Niue || Polynesian
 * Nivkh or Gilyak || Language isolate
 * Nogai || Turkic
 * Norfuk or Norfolk || cant, English-Tahitian based
 * Norman or Norman-French || Romance
 * Norn || Germanic
 * Northern Ndebele || Bantu
 * Northern Sotho or Sepedi || Bantu
 * Northern Straits Salish || Salishan
 * Norwegian (Bokmål, Nynorsk, Riksmål) || Germanic
 * Northeast Malakula || Central Vanuatu
 * Nǀu || Tuu
 * Nuer || Nilotic
 * Nuxálk or Bella Coola || Salishan
 * Nyabwa || Kru
 * Nyah Kur || Austroasiatic
 * Nyangumarta || Pama–Nyungan
 * Nyoro || Bantu
 * colspan="2"|
 * Niellim || Adamawa
 * Nigerian Pidgin || English-based pidgin
 * Nisenan || Maiduan
 * Niuean or Niue || Polynesian
 * Nivkh or Gilyak || Language isolate
 * Nogai || Turkic
 * Norfuk or Norfolk || cant, English-Tahitian based
 * Norman or Norman-French || Romance
 * Norn || Germanic
 * Northern Ndebele || Bantu
 * Northern Sotho or Sepedi || Bantu
 * Northern Straits Salish || Salishan
 * Norwegian (Bokmål, Nynorsk, Riksmål) || Germanic
 * Northeast Malakula || Central Vanuatu
 * Nǀu || Tuu
 * Nuer || Nilotic
 * Nuxálk or Bella Coola || Salishan
 * Nyabwa || Kru
 * Nyah Kur || Austroasiatic
 * Nyangumarta || Pama–Nyungan
 * Nyoro || Bantu
 * colspan="2"|
 * Northern Straits Salish || Salishan
 * Norwegian (Bokmål, Nynorsk, Riksmål) || Germanic
 * Northeast Malakula || Central Vanuatu
 * Nǀu || Tuu
 * Nuer || Nilotic
 * Nuxálk or Bella Coola || Salishan
 * Nyabwa || Kru
 * Nyah Kur || Austroasiatic
 * Nyangumarta || Pama–Nyungan
 * Nyoro || Bantu
 * colspan="2"|
 * Nuxálk or Bella Coola || Salishan
 * Nyabwa || Kru
 * Nyah Kur || Austroasiatic
 * Nyangumarta || Pama–Nyungan
 * Nyoro || Bantu
 * colspan="2"|
 * Nyangumarta || Pama–Nyungan
 * Nyoro || Bantu
 * colspan="2"|
 * colspan="2"|
 * colspan="2"|

O

 * Occitan or Provençal || Romance
 * Odia || Indo-Aryan
 * Ojibwe, Ojibwa, or Chippewa || Algonquian
 * Okinawan || Japonic
 * Oko-Juwoi || Great Andamanese
 * Omagua || Tupian
 * Omok || Yukaghir
 * Ongota || Afroasiatic
 * O'odham || Uto-Aztecan
 * Ormuri || Iranian
 * Oroch || Tungusic
 * Orok || Tungusic
 * Oromo or Afaan Oromoo || Cushitic
 * Ossetic or Ossetian || Iranian
 * colspan="2"|
 * Ongota || Afroasiatic
 * O'odham || Uto-Aztecan
 * Ormuri || Iranian
 * Oroch || Tungusic
 * Orok || Tungusic
 * Oromo or Afaan Oromoo || Cushitic
 * Ossetic or Ossetian || Iranian
 * colspan="2"|
 * Orok || Tungusic
 * Oromo or Afaan Oromoo || Cushitic
 * Ossetic or Ossetian || Iranian
 * colspan="2"|
 * Ossetic or Ossetian || Iranian
 * colspan="2"|
 * colspan="2"|

P

 * Páez or Nasa Yuwe || Language isolate
 * Palauan || Malayo-Polynesian
 * Pame || Oto-Manguean
 * Pangasinan || Malayo-Polynesian
 * Papiamento or Papiamentu || Iberian Romance-based creole
 * Parachi || Iranian
 * Parthian || Iranian
 * Parya || Indo-Aryan
 * Pashto, Pushto, or Pashtu || Iranian
 * Paya or Pech || Chibchan
 * Peninsular Japonic || Japonic
 * Pennsylvania Dutch or Pennsylvania German || Germanic
 * Persian or farsi, as it is referred to in the Persian language || Iranian
 * Phalura || Indo-Aryan
 * Phoenician || Semitic
 * Phuthi || Bantu
 * Picard || Romance
 * Pipil or Nawat || Uto-Aztecan
 * Pirahã || Mura
 * Plautdietsch or Mennonite Low German || Germanic
 * Podlachian or Podlashuk || Slavic
 * Polabian || Slavic
 * Polish || Slavic
 * Popoloca || Oto-Manguean
 * Portuguese || Romance
 * Pothohari or Pahari-Potwari || Indo-Aryan
 * Pradhan or Pardhan || Dravidian
 * Praenestinian || Latino-Faliscan
 * Puelche || Language isolate or Chonan
 * Puma || Tibeto-Burman
 * Punic, Phoenicio-Punic, or Carthaginian || Semitic
 * Punjabi, Panjabi, or Gurmukhi || Indo-Aryan
 * Purépecha or Tarascan ||Language isolate
 * colspan="2"|
 * Pipil or Nawat || Uto-Aztecan
 * Pirahã || Mura
 * Plautdietsch or Mennonite Low German || Germanic
 * Podlachian or Podlashuk || Slavic
 * Polabian || Slavic
 * Polish || Slavic
 * Popoloca || Oto-Manguean
 * Portuguese || Romance
 * Pothohari or Pahari-Potwari || Indo-Aryan
 * Pradhan or Pardhan || Dravidian
 * Praenestinian || Latino-Faliscan
 * Puelche || Language isolate or Chonan
 * Puma || Tibeto-Burman
 * Punic, Phoenicio-Punic, or Carthaginian || Semitic
 * Punjabi, Panjabi, or Gurmukhi || Indo-Aryan
 * Purépecha or Tarascan ||Language isolate
 * colspan="2"|
 * Pothohari or Pahari-Potwari || Indo-Aryan
 * Pradhan or Pardhan || Dravidian
 * Praenestinian || Latino-Faliscan
 * Puelche || Language isolate or Chonan
 * Puma || Tibeto-Burman
 * Punic, Phoenicio-Punic, or Carthaginian || Semitic
 * Punjabi, Panjabi, or Gurmukhi || Indo-Aryan
 * Purépecha or Tarascan ||Language isolate
 * colspan="2"|
 * Punic, Phoenicio-Punic, or Carthaginian || Semitic
 * Punjabi, Panjabi, or Gurmukhi || Indo-Aryan
 * Purépecha or Tarascan ||Language isolate
 * colspan="2"|
 * Purépecha or Tarascan ||Language isolate
 * colspan="2"|
 * colspan="2"|
 * colspan="2"|

Q

 * Q'anjob'al || Mayan
 * Qashqai or Ghashghai || Turkic
 * Qatabanian || Semitic
 * Q'eqchí || Mayan
 * Quebec Sign Language || Francosign
 * Quechua || Quechuan
 * colspan="2"|
 * Q'eqchí || Mayan
 * Quebec Sign Language || Francosign
 * Quechua || Quechuan
 * colspan="2"|
 * Quechua || Quechuan
 * colspan="2"|
 * colspan="2"|

R

 * Rajasthani || Indo-Aryan
 * Ratagnon, Datagnon, or Latagnun || Bisayan
 * Razi || Iranian
 * Razihi || Semitic
 * Réunion Creole or Bourbonnais || French-based creole
 * Rijāl Almaʿ || Semitic
 * Romanian || Romance
 * Romansh || Romance
 * Romani || Indo-Aryan
 * Romblomanon || Bisayan
 * Rotokas || East Papuan
 * Rotuman || Central Pacific
 * Rouran || Mongolic
 * Runyankole language or Nyankore || Bantu
 * Russian || Slavic
 * Russian Sign Language || Francosign
 * Rusyn, Carpathian || Slavic
 * Rusyn, Pannonian || Slavic
 * Rutul || Northeast Caucasian languages
 * Ruthenian || Slavic
 * colspan="2"|
 * Rotokas || East Papuan
 * Rotuman || Central Pacific
 * Rouran || Mongolic
 * Runyankole language or Nyankore || Bantu
 * Russian || Slavic
 * Russian Sign Language || Francosign
 * Rusyn, Carpathian || Slavic
 * Rusyn, Pannonian || Slavic
 * Rutul || Northeast Caucasian languages
 * Ruthenian || Slavic
 * colspan="2"|
 * Rusyn, Carpathian || Slavic
 * Rusyn, Pannonian || Slavic
 * Rutul || Northeast Caucasian languages
 * Ruthenian || Slavic
 * colspan="2"|
 * Rutul || Northeast Caucasian languages
 * Ruthenian || Slavic
 * colspan="2"|
 * colspan="2"|
 * colspan="2"|

S

 * Sabaic or Sabaean || Semitic
 * Safaitic || Semitic
 * Salar || Turkic
 * Samaritan Aramaic || Semitic
 * Samoan || Malayo-Polynesian
 * Sandawe || Language isolate
 * Sango || Ngbandi-based creole
 * Sanskrit || Indo-Aryan, liturgical language
 * Santali || Austroasiatic
 * Sara Bakati' || Land Dayak
 * Saraiki, Seraiki, or Siraiki Southern Punjabi || Indo-Aryan
 * Saramaccan || English-based creole
 * Sardinian || Romance
 * Sardinian, Campidanese || Romance
 * Sardinian, Logudorese || Romance
 * Sarikoli || Iranian
 * Sart Kalmyk || Mongolic
 * Saurashtra or Sourashtra || Indo-Aryan
 * Savi || Indo-Aryan
 * Sawai || South Halmahera–West New Guinea
 * Scots || Germanic
 * Scots, Shetlandic or Shaetlan || Germanic
 * Scots, Ulster || Germanic
 * Scottish Gaelic or Scots Gaelic or Gaidhlig or Gaelic || Celtic
 * Selangor Sign Language || Francosign
 * Selkup or Ostyak Samoyed || Samoyedic
 * Semnani || Iranian
 * Senaya || Semitic
 * Serbian || Slavic
 * Serbo-Croatian || Slavic
 * Sesotho || Bantu
 * Seto or Setu || Uralic
 * Seychellois Creole || French-based creole
 * Shan || Kra–Dai
 * Shelta || Irish and Irish English-based mixed language
 * Shimaore || Bantu
 * Shina || Indo-Aryan
 * Shipibo or Shipibo-Konibo || Panoan
 * Shona || Bantu
 * Shor || Turkic
 * Shoshoni or Shoshone || Uto-Aztecan
 * Shtokavian || Slavic
 * Shughni || Iranian
 * Shumashti || Indo-Aryan
 * Shuswap or Secwepemctsín || Salishan
 * Siberian Tatar || Turkic
 * Sicilian || Romance
 * Sidamo || Cushitic
 * Sierra Popoluca or Soteapanec || Mixe–Zoque
 * Sika || Flores–Lembata
 * Silesian || Slavic
 * Silla or Old Korean || Koreanic
 * Silt'e or Selti or East Gurage || Semitic
 * Sinacantán || Xincan
 * Sindhi || Indo-Aryan
 * Sinhala || Indo-Aryan
 * Sioux || Siouan
 * Sivandi || Iranian
 * Sámi, Akkala || Uralic
 * Sámi, Inari || Uralic
 * Sámi, Kainuu || Uralic
 * Sámi, Kemi || Uralic
 * Sámi, Kildin || Uralic
 * Sámi, Lule || Uralic
 * Sámi, Northern || Uralic
 * Sámi, Pite || Uralic
 * Sámi, Skolt || Uralic
 * Sámi, Southern || Uralic
 * Sámi, Ter || Uralic
 * Sámi, Ume || Uralic
 * Sentinelese || Unclassified language
 * Slavey || Athabaskan
 * Slavomolisano || Slavic
 * Slovak || Slavic
 * Slovene or Slovenian || Slavic
 * Soddo or Kistane || Semitic
 * Somali || Cushitic
 * Sonjo or Temi || Bantu
 * Sonsorolese or Sonsorol || Micronesian
 * Soqotri || Semitic
 * Sora || Austroasiatic
 * Sorbian, Lower || Slavic
 * Sorbian, Upper || Slavic
 * Sourashtra || Indo-Aryan
 * Southern Ndebele || Bantu
 * South Estonian || Uralic
 * Spanish || Romance
 * Spanish, Amazonic || Romance
 * Spanish, Andalusian || Romance
 * Spanish, Canarian || Romance
 * Spanish, Caribbean || Romance
 * Spanish, Castilian || Romance
 * Spanish, Catalan || Romance
 * Spanish, Chilote || Romance
 * Spanish, Extremaduran or Castúo || Romance
 * Spanish, Galician or Castrapo || Romance
 * Spanish, Gibraltarian or Llanito || Romance
 * Spanish, Mexican || Romance
 * Spanish, Murcian || Romance
 * Spanish, Peninsular || Romance
 * Spanish, Sabine River, Adaeseño Spanish, or Zwolle-Ebarb Spanish || Romance
 * Spanish, Saharan or Western Saharan Spanish || Romance
 * Spanish, Standard || Romance
 * Sranan Tongo || English-based creole
 * St'at'imcets or Lillooet || Salishan
 * Sucite or Sìcìté Sénoufo || Senufo
 * Suba || Bantu
 * Sundanese || Malayo-Polynesian
 * Supyire or Supyire Senoufo || Senufo
 * Surigaonon || Bisayan
 * Susu || Mande
 * Svan || South Caucasian
 * Swahili || Bantu
 * Swati, Swazi, Siswati, or Seswati || Bantu
 * Swedish || Germanic
 * Syriac || Semitic
 * colspan="2"|
 * Sámi, Akkala || Uralic
 * Sámi, Inari || Uralic
 * Sámi, Kainuu || Uralic
 * Sámi, Kemi || Uralic
 * Sámi, Kildin || Uralic
 * Sámi, Lule || Uralic
 * Sámi, Northern || Uralic
 * Sámi, Pite || Uralic
 * Sámi, Skolt || Uralic
 * Sámi, Southern || Uralic
 * Sámi, Ter || Uralic
 * Sámi, Ume || Uralic
 * Sentinelese || Unclassified language
 * Slavey || Athabaskan
 * Slavomolisano || Slavic
 * Slovak || Slavic
 * Slovene or Slovenian || Slavic
 * Soddo or Kistane || Semitic
 * Somali || Cushitic
 * Sonjo or Temi || Bantu
 * Sonsorolese or Sonsorol || Micronesian
 * Soqotri || Semitic
 * Sora || Austroasiatic
 * Sorbian, Lower || Slavic
 * Sorbian, Upper || Slavic
 * Sourashtra || Indo-Aryan
 * Southern Ndebele || Bantu
 * South Estonian || Uralic
 * Spanish || Romance
 * Spanish, Amazonic || Romance
 * Spanish, Andalusian || Romance
 * Spanish, Canarian || Romance
 * Spanish, Caribbean || Romance
 * Spanish, Castilian || Romance
 * Spanish, Catalan || Romance
 * Spanish, Chilote || Romance
 * Spanish, Extremaduran or Castúo || Romance
 * Spanish, Galician or Castrapo || Romance
 * Spanish, Gibraltarian or Llanito || Romance
 * Spanish, Mexican || Romance
 * Spanish, Murcian || Romance
 * Spanish, Peninsular || Romance
 * Spanish, Sabine River, Adaeseño Spanish, or Zwolle-Ebarb Spanish || Romance
 * Spanish, Saharan or Western Saharan Spanish || Romance
 * Spanish, Standard || Romance
 * Sranan Tongo || English-based creole
 * St'at'imcets or Lillooet || Salishan
 * Sucite or Sìcìté Sénoufo || Senufo
 * Suba || Bantu
 * Sundanese || Malayo-Polynesian
 * Supyire or Supyire Senoufo || Senufo
 * Surigaonon || Bisayan
 * Susu || Mande
 * Svan || South Caucasian
 * Swahili || Bantu
 * Swati, Swazi, Siswati, or Seswati || Bantu
 * Swedish || Germanic
 * Syriac || Semitic
 * colspan="2"|
 * Spanish, Andalusian || Romance
 * Spanish, Canarian || Romance
 * Spanish, Caribbean || Romance
 * Spanish, Castilian || Romance
 * Spanish, Catalan || Romance
 * Spanish, Chilote || Romance
 * Spanish, Extremaduran or Castúo || Romance
 * Spanish, Galician or Castrapo || Romance
 * Spanish, Gibraltarian or Llanito || Romance
 * Spanish, Mexican || Romance
 * Spanish, Murcian || Romance
 * Spanish, Peninsular || Romance
 * Spanish, Sabine River, Adaeseño Spanish, or Zwolle-Ebarb Spanish || Romance
 * Spanish, Saharan or Western Saharan Spanish || Romance
 * Spanish, Standard || Romance
 * Sranan Tongo || English-based creole
 * St'at'imcets or Lillooet || Salishan
 * Sucite or Sìcìté Sénoufo || Senufo
 * Suba || Bantu
 * Sundanese || Malayo-Polynesian
 * Supyire or Supyire Senoufo || Senufo
 * Surigaonon || Bisayan
 * Susu || Mande
 * Svan || South Caucasian
 * Swahili || Bantu
 * Swati, Swazi, Siswati, or Seswati || Bantu
 * Swedish || Germanic
 * Syriac || Semitic
 * colspan="2"|
 * Spanish, Standard || Romance
 * Sranan Tongo || English-based creole
 * St'at'imcets or Lillooet || Salishan
 * Sucite or Sìcìté Sénoufo || Senufo
 * Suba || Bantu
 * Sundanese || Malayo-Polynesian
 * Supyire or Supyire Senoufo || Senufo
 * Surigaonon || Bisayan
 * Susu || Mande
 * Svan || South Caucasian
 * Swahili || Bantu
 * Swati, Swazi, Siswati, or Seswati || Bantu
 * Swedish || Germanic
 * Syriac || Semitic
 * colspan="2"|
 * Susu || Mande
 * Svan || South Caucasian
 * Swahili || Bantu
 * Swati, Swazi, Siswati, or Seswati || Bantu
 * Swedish || Germanic
 * Syriac || Semitic
 * colspan="2"|
 * Swati, Swazi, Siswati, or Seswati || Bantu
 * Swedish || Germanic
 * Syriac || Semitic
 * colspan="2"|
 * Syriac || Semitic
 * colspan="2"|
 * colspan="2"|

T

 * Tabasaran or Tabassaran || Northeast Caucasian
 * Tacana || Tacanan
 * Tachelhit || Berber
 * Tagalog || Central Philippine
 * Tahitian || Polynesian
 * Tai Lue || Kra–Dai
 * Taíno || Arawakan
 * Taiwanese Sign Language || JSLic
 * Tajik || Iranian
 * Takestani || Iranian
 * Talysh || Iranian
 * Tamil || Dravidian
 * Tanacross || Athabaskan
 * Tangut || Tibeto-Burman
 * Taos or Northern Tiwa || Tanoan
 * Tarahumara || Uto-Aztecan
 * Tarama || Japonic
 * Tarifit or Rifi or Riff Berber || Berber
 * Tat or Tati || Iranian
 * Tatar || Turkic
 * Tausug || Bisayan
 * Taymanitic || Semitic
 * Tehuelche or Aonikenk || Chon
 * Telugu || Dravidian
 * Tetum || Malayo-Polynesian
 * Tepehua || Totonacan
 * Tepehuán or O'otham || Uto-Aztecan
 * Tewa || Tanoan
 * Thai || Kra–Dai
 * Thamudic || Semitic
 * Tharu || Indo-Aryan
 * Tibetan, Lhasa || Tibetic
 * Ticuna || Language isolate
 * Tigre or Xasa || Semitic
 * Tigrinya || Semitic
 * Timbisha or Panamint || Uto-Aztecan
 * Tiv || Tivoid
 * Tlingit || Na-Dené
 * Tobian || Micronesian
 * Toda || Dravidian
 * Tojolab'al || Mayan
 * Tok Pisin || English-based creole
 * Tokelauan || Polynesian
 * Tol or Jicaque || Jicaquean
 * Tonga || Bantu
 * Tongan || Polynesian
 * Torlakian || Slavic
 * Torwali or Turvali || Indo-Aryan
 * Tregami || Indo-Aryan
 * Trique or Triqui || Oto-Manguean
 * Tsat || Chamic
 * Tsez or Dido || Northeast Caucasian
 * Tshiluba, Luba-Kasai, or Luba-Lulua || Bantu
 * Tsimshian, Coast || Tsimshianic
 * Tsimshian, Southern || Tsimshianic
 * Tsonga || Bantu
 * Tswana or Setswana || Bantu
 * Tu or Monguor || Mongolic
 * Tuareg languages or Tamasheq || Berber
 * Tulu || Dravidian
 * Tumbuka || Bantu
 * Tupiniquim || Tupian
 * Turkish || Turkic
 * Turkish, Ottoman || Turkic
 * Turkmen || Turkic
 * Turoyo || Semitic
 * Tuvaluan || Polynesian
 * Tuvan Tuvin or Tyvan || Turkic
 * Tzeltal || Mayan
 * Tzotzil || Mayan
 * colspan="2"|
 * Timbisha or Panamint || Uto-Aztecan
 * Tiv || Tivoid
 * Tlingit || Na-Dené
 * Tobian || Micronesian
 * Toda || Dravidian
 * Tojolab'al || Mayan
 * Tok Pisin || English-based creole
 * Tokelauan || Polynesian
 * Tol or Jicaque || Jicaquean
 * Tonga || Bantu
 * Tongan || Polynesian
 * Torlakian || Slavic
 * Torwali or Turvali || Indo-Aryan
 * Tregami || Indo-Aryan
 * Trique or Triqui || Oto-Manguean
 * Tsat || Chamic
 * Tsez or Dido || Northeast Caucasian
 * Tshiluba, Luba-Kasai, or Luba-Lulua || Bantu
 * Tsimshian, Coast || Tsimshianic
 * Tsimshian, Southern || Tsimshianic
 * Tsonga || Bantu
 * Tswana or Setswana || Bantu
 * Tu or Monguor || Mongolic
 * Tuareg languages or Tamasheq || Berber
 * Tulu || Dravidian
 * Tumbuka || Bantu
 * Tupiniquim || Tupian
 * Turkish || Turkic
 * Turkish, Ottoman || Turkic
 * Turkmen || Turkic
 * Turoyo || Semitic
 * Tuvaluan || Polynesian
 * Tuvan Tuvin or Tyvan || Turkic
 * Tzeltal || Mayan
 * Tzotzil || Mayan
 * colspan="2"|
 * Tsimshian, Coast || Tsimshianic
 * Tsimshian, Southern || Tsimshianic
 * Tsonga || Bantu
 * Tswana or Setswana || Bantu
 * Tu or Monguor || Mongolic
 * Tuareg languages or Tamasheq || Berber
 * Tulu || Dravidian
 * Tumbuka || Bantu
 * Tupiniquim || Tupian
 * Turkish || Turkic
 * Turkish, Ottoman || Turkic
 * Turkmen || Turkic
 * Turoyo || Semitic
 * Tuvaluan || Polynesian
 * Tuvan Tuvin or Tyvan || Turkic
 * Tzeltal || Mayan
 * Tzotzil || Mayan
 * colspan="2"|
 * Turkish || Turkic
 * Turkish, Ottoman || Turkic
 * Turkmen || Turkic
 * Turoyo || Semitic
 * Tuvaluan || Polynesian
 * Tuvan Tuvin or Tyvan || Turkic
 * Tzeltal || Mayan
 * Tzotzil || Mayan
 * colspan="2"|
 * Tuvan Tuvin or Tyvan || Turkic
 * Tzeltal || Mayan
 * Tzotzil || Mayan
 * colspan="2"|
 * Tzotzil || Mayan
 * colspan="2"|
 * colspan="2"|
 * colspan="2"|

U

 * Udihe or Ude or Udege || Tungusic
 * Udmurt or Votyak || Uralic
 * Ugaritic || Semitic
 * Ukrainian || Slavic
 * Ulch or Olcha || Tungusic
 * Unserdeutsch or Rabaul Creole German || German-based creole
 * Upper Sorbian || Slavic
 * Urdu || Indo-Aryan
 * Urum || Turkic
 * Ute || Uto-Aztecan
 * Uyghur or Uighur || Turkic
 * Uzbek || Turkic
 * colspan="2"|
 * Upper Sorbian || Slavic
 * Urdu || Indo-Aryan
 * Urum || Turkic
 * Ute || Uto-Aztecan
 * Uyghur or Uighur || Turkic
 * Uzbek || Turkic
 * colspan="2"|
 * Uyghur or Uighur || Turkic
 * Uzbek || Turkic
 * colspan="2"|
 * Uzbek || Turkic
 * colspan="2"|
 * colspan="2"|

V

 * Vafsi || Iranian
 * Valencian Sign Language || Catalan Sign
 * Vasi-vari or Prasuni || Indo-Aryan
 * Vastese || Romance
 * Venda or Tshivenda || Bantu
 * Venetian || Romance
 * Veps || Uralic
 * Vietnamese || Austroasiatic
 * Võro || Uralic
 * Votic or Votian || Uralic
 * colspan="2"|
 * Venetian || Romance
 * Veps || Uralic
 * Vietnamese || Austroasiatic
 * Võro || Uralic
 * Votic or Votian || Uralic
 * colspan="2"|
 * Võro || Uralic
 * Votic or Votian || Uralic
 * colspan="2"|
 * colspan="2"|
 * colspan="2"|

W

 * Wa || Austroasiatic
 * Waddar || Dravidian
 * Wagiman || Language isolate
 * Waigali or Kalasha-Ala || Indo-Aryan
 * Waima or Roro || Malayo-Polynesian
 * Wakhi || Iranian
 * Wallisian or East Uvean || Polynesian
 * Walloon || Romance
 * Waray or Binisaya || Malayo-Polynesian
 * Washo || Language isolate
 * Welsh || Celtic
 * Western Neo-Aramaic || Semitic
 * West Polesian or Poleshuk || Slavic
 * Wolane (Silt'e) || Semitic
 * Wolof || Niger–Congo
 * Wu || Sinitic
 * Wymysorys || Germanic
 * colspan="2"|
 * Washo || Language isolate
 * Welsh || Celtic
 * Western Neo-Aramaic || Semitic
 * West Polesian or Poleshuk || Slavic
 * Wolane (Silt'e) || Semitic
 * Wolof || Niger–Congo
 * Wu || Sinitic
 * Wymysorys || Germanic
 * colspan="2"|
 * Wolane (Silt'e) || Semitic
 * Wolof || Niger–Congo
 * Wu || Sinitic
 * Wymysorys || Germanic
 * colspan="2"|
 * Wymysorys || Germanic
 * colspan="2"|
 * colspan="2"|
 * colspan="2"|

X

 * Xavante || Jê
 * Xhosa || Bantu
 * Xiang || Sinitic
 * Xibe or Sibo || Tungusic
 * Xipaya || Tupian
 * colspan="2"|
 * Xibe or Sibo || Tungusic
 * Xipaya || Tupian
 * colspan="2"|
 * Xipaya || Tupian
 * colspan="2"|
 * colspan="2"|

Y

 * Yaaku || Afroasiatic
 * Yaeyama || Japonic
 * Yaghan or Yámana || Language isolate
 * Yaghnobi || Iranian
 * Yakut || Turkic
 * Yankunytjatjara || Pama–Nyungan
 * Yanyuwa || Pama–Nyungan
 * Yapese || Malayo-Polynesian
 * Yaqui || Uto-Aztecan
 * Yauma || Bantu
 * Yavapai || Yuman
 * Yazdi || Iranian
 * Yazgulyam or Yazgulami || Iranian
 * Ye-Maek || Puyŏ?
 * Yeni || Niger–Congo
 * Yi language or Nuosu || Tibeto-Burman
 * Yine or Piro || Arawakan
 * Yiddish || Germanic
 * Yidgha || Iranian
 * Yugur, Eastern || Mongolic
 * Yugur, Western or Neo-Uygur || Turkic
 * Yokuts, Yokutsan, or Mariposa || Yokutsan
 * Yokuts, Buena Vista || Yokutsan
 * Yokuts, Delta || Yokutsan
 * Yokuts, Palewyami || Yokutsan
 * Yokuts, Tule–Kaweah || Yokutsan
 * Yokuts, Valley || Yokutsan
 * Yonaguni || Japonic
 * Yorùbá || Volta–Niger
 * Yucatec Maya || Yucatecan
 * Yuchi || Language isolate
 * Yukaghir, Northern or Tundra Yukaghir || Yukaghir
 * Yukaghir, Southern or Forest Yukaghir || Yukaghir
 * Yukjin || Koreanic
 * Yupik || Eskimo–Aleut
 * Yupiltepeque || Xincan
 * Yurats || Samoyedic
 * Yurok || Algic
 * colspan="2"|
 * Yugur, Eastern || Mongolic
 * Yugur, Western or Neo-Uygur || Turkic
 * Yokuts, Yokutsan, or Mariposa || Yokutsan
 * Yokuts, Buena Vista || Yokutsan
 * Yokuts, Delta || Yokutsan
 * Yokuts, Palewyami || Yokutsan
 * Yokuts, Tule–Kaweah || Yokutsan
 * Yokuts, Valley || Yokutsan
 * Yonaguni || Japonic
 * Yorùbá || Volta–Niger
 * Yucatec Maya || Yucatecan
 * Yuchi || Language isolate
 * Yukaghir, Northern or Tundra Yukaghir || Yukaghir
 * Yukaghir, Southern or Forest Yukaghir || Yukaghir
 * Yukjin || Koreanic
 * Yupik || Eskimo–Aleut
 * Yupiltepeque || Xincan
 * Yurats || Samoyedic
 * Yurok || Algic
 * colspan="2"|
 * Yucatec Maya || Yucatecan
 * Yuchi || Language isolate
 * Yukaghir, Northern or Tundra Yukaghir || Yukaghir
 * Yukaghir, Southern or Forest Yukaghir || Yukaghir
 * Yukjin || Koreanic
 * Yupik || Eskimo–Aleut
 * Yupiltepeque || Xincan
 * Yurats || Samoyedic
 * Yurok || Algic
 * colspan="2"|
 * Yupik || Eskimo–Aleut
 * Yupiltepeque || Xincan
 * Yurats || Samoyedic
 * Yurok || Algic
 * colspan="2"|
 * Yurok || Algic
 * colspan="2"|
 * colspan="2"|
 * colspan="2"|

Z

 * Záparo || Saparoan
 * Zapotec || Oto-Manguean
 * Zaza or Zazaki || Iranian
 * Zeelandic || Germanic
 * Zhuang || Kra–Dai
 * Zok or Agulis || Armenian
 * Zoque || Mixe–Zoquean
 * Zoroastrian Dari || Iranian
 * Zulu || Bantu
 * Zuñi or Zuni || Language isolate
 * Zway or Zay || Semitic
 * }
 * Zoque || Mixe–Zoquean
 * Zoroastrian Dari || Iranian
 * Zulu || Bantu
 * Zuñi or Zuni || Language isolate
 * Zway or Zay || Semitic
 * }
 * Zuñi or Zuni || Language isolate
 * Zway or Zay || Semitic
 * }
 * Zway or Zay || Semitic
 * }