List of tributaries of the Río de la Plata

This is a list of tributaries of the Río de la Plata, or rivers of the La Plata Basin. Tributaries and sub-tributaries are hierarchically listed in order from the mouth of the Río de la Plata upriver. The terms "right" and "left" indicate on which side of the main stem river a tributary is located, from the perspective of looking downriver, following standard river bank terminology usage. Countries are identified in abbreviated form: AR for Argentina, UY for Uruguay, PY or PA for Paraguay, BR for Brazil, and BO for Bolivia. Major dams are also noted.


 * Salado River: right; AR; -35.74556°N, -57.36417°W (Samborombón Bay);.
 * Rio Vallimanca: right; AR.
 * Samborombón River: right; AR; -35.71667°N, -57.34722°W (Samborombón Bay); GNS:.
 * Santa Lucía River: left; UR.
 * Matanza River (Riachuelo): right; AR; -34.6325°N, -58.34611°W;.
 * Luján River: right; AR; -34.43194°N, -58.54111°W;.
 * Reconquista River: right; AR
 * San Juan River (Uruguay): left; UR; -34.27389°N, -57.98917°W;.


 * Uruguay River: left; AR, UY, BR; -35.71667°N, -57.34722°W; GNS:, ,.
 * San Salvador River (Uruguay): left; UY.
 * Río Negro (Uruguay): left; UY; -33.41667°N, -58.41667°W; GNS:.
 * Yí River: left; UY; -33.11389°N, -57.11278°W;.
 * Porongos River: left; UY.
 * Chamangá River: left; UY.
 * Gualeguaychú River: right; AR; -33.07917°N, -58.41667°W;.
 * Queguay Grande River: right; UY.
 * Queguay Chico River: right; UY.
 * Daymán River: right; UY; -31.50444°N, -58.03222°W;.
 * Salto Grande Dam: AR, UY.
 * Arapey Grande River: right; UY
 * Arapey Chico River: right; UY.
 * Mocoretá River: right; AR.
 * Miriñay River: right; AR; -30.17°N, -57.63306°W;.
 * Quaraí River (Spanish Río Cuareim, Portuguese Rio Quaraí): left; UY, BR (border); -30.18472°N, -57.605°W;.
 * Ibicuí River: left; BR; -29.42111°N, -56.77222°W;.
 * Itu River: right; BR; -29.41028°N, -55.85056°W;.
 * Santa Maria River (Rio Grande do Sul): left Ibicuí source; BR; -29.80361°N, -54.92222°W;.
 * Ibicuí-Mirim River: right Ibicuí source; BR; -29.80389°N, -54.92111°W;.
 * Aguapey River: right; AR; -29.11083°N, -56.585°W;.
 * Icamaquã River: left; BR; -28.56722°N, -56.00361°W;.
 * Ijuí River: left; BR; -27.9675°N, -55.33361°W;.
 * Santa Rosa River (Rio Grande do Sul): left; BR; -27.55778°N, -54.66583°W;.
 * Pepiri-Guazu River (Spanish Río Pepirí Guazú, Portuguese Rio Peperi Guaçu): right; AR, BR (border); -27.16667°N, -53.83333°W;,.
 * Guarita River: left; BR.
 * Das Antas River (Rio Grande do Sul): right; BR.
 * Da Várzea River (Rio Grande do Sul): left; BR; -27.21333°N, -53.32583°W;.
 * Chapecó River: right; BR; -27.09528°N, -53.01583°W;.
 * Chapecozinho River: left; BR.
 * Passo Fundo River: left; BR; -27.28556°N, -52.69056°W;.
 * Irani River: right; BR; -27.23972°N, -52.54389°W;.
 * Do Peixe River (Santa Catarina): right; BR.
 * Forquetinha River: left; BR.
 * Canoas River (Santa Catarina): right Uruguay source; BR; -27.60583°N, -51.45556°W;.
 * Campos Novos Dam: BR (Santa Catarina).
 * Caveiras River: left; BR.
 * Marombas River: right; BR (Santa Catarina); -27.42167°N, -50.75444°W;.
 * Pelotas River: left Uruguay source; BR; -27.60861°N, -51.45611°W;.
 * Vacas Gordas River: BR
 * Pelotinhas River: BR
 * Lava-Tudo River: BR
 * São Mateus River (Santa Catarina): BR
 * Antoninha River: BR
 * Da Divisa River: BR
 * Sumidouro River: BR
 * Púlpito River: BR


 * Paraná River: right; AR, PA, BR; -34.00139°N, -58.39361°W; GNS: ??.
 * Arrecifes River: right; AR; -33.75528°N, -59.56972°W;.
 * Gualeguay River: left; AR; -33.31667°N, -59.63333°W;.
 * Nogoya River: left; AR; -32.91667°N, -59.98333°W;,.
 * Arroyo del Medio; right; AR.
 * Saladillo Stream (Arroyo Saladillo or Río Saladillo): right; AR; -32.99833°N, -60.61167°W;,.
 * Ludueña Stream: right; AR; -32.90639°N, -60.67611°W;.
 * Carcarañá River: right; AR; -32.44222°N, -60.80361°W;.
 * Tercero River (Calamuchita River): left Carcarañá source; AR; -32.915°N, -62.32472°W;.
 * Cuarto River (Saladillo River, Chocancharava River): right Carcarañá source; AR; -32.91528°N, -62.32472°W;.
 * Salado River (Argentina) (also Salado del Norte, Juramento River, Pasaje River, Calchaquí River): right; AR; -31.68389°N, -60.7425°W;, ,.
 * Horcones River (variant: Río Rosario): right; AR (Santiago Estero and Salta); -26.58333°N, -63.96667°W;,.
 * Urueña River: right; AR (Santiago Estero and Salta); -26.23333°N, -64.5°W;.
 * Arenales River
 * Rosario River
 * Guasamayo River
 * Feliciano River: left; AR; -31.09028°N, -59.89611°W;.
 * Guayquiraró River: left; AR; -30.41278°N, -59.57972°W;.
 * Corrientes River: left, AR; -30.01056°N, -59.55583°W;.
 * Paraná Miní River: right; AR; -29.08583°N, -59.40583°W;.
 * Tapenagá River: right; AR; -28.07944°N, -59.155°W;.
 * Palometa River: right; AR; -27.93222°N, -59.10222°W;.
 * Santa Lucía River: left; AR; -29.07861°N, -59.23583°W;.
 * Negro River (Chaco): right; AR (Chaco); -27.46889°N, -58.89667°W;.
 * Guaycurú River: right; AR (Chaco).


 * Paraguay River: right; AR, PA, BR; -27.28917°N, -58.60806°W; GNS:.
 * Río de Oro: right; AR; -27.06667°N, -58.56667°W;.
 * Bermejo River (Teuco River): right; AR, BO; -26.86667°N, -58.38333°W; GNS:.
 * Bermejito River: right (anabranch); AR; -25.65°N, -60.18333°W; GNS:.
 * Dorado River
 * Teuquito River
 * Seco River
 * San Francisco River: right; AR (Salta, Jujuy); -23.30417°N, -64.07917°W;.
 * Grande River
 * Mojotoro River (Lavayén River)
 * Pescado River: right; AR; -22.99667°N, -64.33667°W;.
 * Iruya River: left; AR; -22.33667°N, -64.09778°W;.
 * Río Grande de Tarija: left; AR; -22.92694°N, -64.33639°W;.
 * Itaú River: left; AR and BO; -22.33667°N, -64.09778°W;.
 * Lipeo River: right; AR; -22.44111°N, -64.52583°W;.
 * Tebicuary River; left; PY; -26.60444°N, -58.19278°W;.
 * Pilcomayo River: right; AR, BO: -25.35°N, -57.66667°W;.
 * Pilaya River (Bolivia)
 * San Juan del Oro River (Bolivia)
 * Río Grande de San Juan
 * Confuso River: right, PA; -25.1325°N, -57.54194°W;.
 * Salado River (Paraguay): left; PA; -25.10722°N, -57.47722°W;.
 * Piribebuy River: left; PY.
 * Manduvirá River: left; PY; -24.95833°N, -57.30778°W;.
 * Aguaray-Guazú River (Paraguay River): right; PY
 * Negro River (Paraguay): PY
 * Jejuí Guazú River: left; PA.
 * Monte Lindo River: PY
 * Ypané River: left; PY; -23.4775°N, -57.44222°W;.
 * Aquidabán River: left; PY
 * Verde River (Paraguay): PY
 * Apa River: left, PA, BR (border); -22.09056°N, -57.99°W;.
 * Perdido River (Mato Grosso do Sul): right; BR (Mato Grosso do Sul).
 * Caracol River (Mato Grosso do Sul): right; BR (Mato Grosso do Sul).
 * Amanguijá River: left; BR (Mato Grosso do Sul).
 * Tarunã River: left; BR (Mato Grosso do Sul).
 * Tererê River: left; BR (Mato Grosso do Sul).
 * Branco River (Mato Grosso do Sul): left; BR (Mato Grosso do Sul).
 * Aquidabã River (Mato Grosso do Sul): left; BR (Mato Grosso do Sul).
 * Novo River (Paraguay River): right; BR (Mato Grosso do Sul).
 * Miranda River (Brazil): left; BR (Mato Grosso do Sul); -19.41278°N, -57.33194°W;.
 * Aquidauana River: right; BR (Mato Grosso do Sul).
 * Salobra River: left; BR (Mato Grosso do Sul).
 * Negro River (Mato Grosso do Sul): left; BR (Mato Grosso do Sul); -19.23889°N, -57.22083°W;.
 * Taboco River: left; BR (Mato Grosso do Sul).
 * Inhumas River (Mato Grosso do Sul): right; BR (Mato Grosso do Sul).
 * Taquari-Mirim River (Mato Grosso do Sul): left; BR (Mato Grosso do Sul).
 * Cuiabá River: BR; -17.15278°N, -56.64917°W;.
 * Paraguazinho River: left; BR (MG, Pantanal)
 * Cassanje River: left; BR (Mato Grosso, Pantanal);
 * Jauru River (Mato Grosso): right; BR; -16.34472°N, -57.78194°W;.
 * Aguapeí River: right; BR (Mato Grosso); -15.87306°N, -58.39861°W;.
 * Cabaçal River: right; BR (Mato Grosso); -15.99778°N, -57.70528°W;.
 * Vermelho River (Mato Grosso): right; BR (MG).
 * Sepotuba River: left; BR (MG).


 * (Paraná River above Paraguay confluence)
 * Yacyretá Dam: AR, PY.
 * Iguazu River (Portuguese Rio Iguaçu, Spanish Río Iguazú, also Rio Iguassu): left; BR, AR (partially border); -25.5925°N, -54.59083°W; ,
 * San Antonio River: left; BR, AR (border).
 * Chopim River: left; BR.
 * Salt Santiago Dam
 * Jordão River (Paraná): right; BR.
 * Iratim River: left; BR.
 * São Francisco River (Paraná): left; BR (Paraná).
 * Piquiri River: left; BR (Paraná); -24.02694°N, -54.09361°W;.
 * Goio-Erê River: right; BR.
 * Cantú River: right; BR.
 * Do Cobre River: left; BR.
 * Ivaí River: left; BR (Paraná); -23.30472°N, -53.69694°W;.
 * Ligeiro River: left; BR.
 * Corumbataí River (Paraná): left; BR.
 * Ivinhema River: right; BR (Mato Grosso do Sul).
 * Paranapanema River: left; BR (Paraná and São Paulo border); -22.65833°N, -53.08972°W;.
 * Rosana Dam
 * Taquaruçu Dam
 * Capivara Dam
 * Tibagi River: left; BR (Paraná); -22.79861°N, -51.005°W;.
 * Iapó River: right; BR (Paraná).
 * Das Cinzas River: left; BR (Paraná).
 * Laranjinha River: left; BR (Paraná).
 * Salto Grande Dam
 * Pardo River (Paranapanema River): right; BR (São Paulo); -22.91194°N, -49.96583°W;.
 * Xavantes Dam
 * Itararé River: left: BR (Paraná and São Paulo border).
 * Taquari-Guaçu River: left; BR (São Paulo).
 * Apiai-Guaçu River: left; BR (São Paulo).
 * Itapetininga River: right; BR (São Paulo); -23.60028°N, -48.4425°W;.
 * Sérgio Motta Dam
 * Pardo River (Mato Grosso do Sul): right; BR; -21.66417°N, -52.22417°W;.
 * Anhanduí River: right; BR.
 * Do Peixe River (Paraná River): left; BR (São Paulo).
 * Verde River (Mato Grosso do Sul): right; BR.
 * São Domingos River (Mato Grosso do Sul): left; BR.
 * Aguapeí River (São Paulo): right; BR.
 * Eng Souza Dias (Jupiá) Dam
 * Sucuriú River: right; BR (Mato Grosse do Sul); -20.71194°N, -51.66°W;.
 * Tietê River: left; BR (São Paulo); -20.62778°N, -51.565°W;.
 * Três Irmãos Dam
 * Nova Avanhandava Dam
 * Promissão Dam
 * Ibitinga Dam
 * Bariri Dam
 * Barra Bonita Dam
 * Piracicaba River: right; BR (São Paulo); -22.61472°N, -48.32°W;.
 * Anhembi Dam
 * Laras Dam
 * Sorocaba River: left; BR; -22.98222°N, -47.80667°W;.
 * Ituparanga Dam
 * Sarapuí River (São Paulo): left; BR.
 * Capivari River (Tietê River): right; BR; -22.98417°N, -47.76417°W;.
 * Jundiaí River (upper Tietê River): right; BR; -23.21139°N, -47.29278°W;.
 * Pinheiros River: left; BR (São Paulo state and São Paulo city); -23.52667°N, -46.75°W;.
 * Rio Grande (Pinheiros River): left; São Paulo City.
 * Guarapiranga (reservoir): São Paulo City.
 * Billings Reservoir: São Paulo City.
 * Ilha Solteira Dam
 * São José dos Dourados River: left; BR (São Paulo); -20.37278°N, -51.32278°W;.
 * Grande River: left Paraná source; BR (São Paulo and Minas Gerais border); -20.07806°N, -50.99472°W;.
 * Água Vermelha Dam
 * Turvo River (Grande River): left; BR (São Paulo); -19.94972°N, -49.89833°W;.
 * Marimbondo Dam
 * Pardo River (São Paulo): left; BR; -20.17°N, -48.64444°W;.
 * Moji-Guaçu River: left; BR (São Paulo); -20.88778°N, -48.1775°W;.
 * Moji-Mirim River: left?; BR.
 * Porto Colõmbia Dam
 * Volta Grande Dam
 * Igarapava Dam
 * Jaguará Dam
 * Luiz Barreto (Estreito) Dam
 * Furnas Dam
 * Camargos Dam
 * Paranaíba River: right Paraná source; BR (Minas Gerais and Goiás, border in part); -20.07861°N, -51.00611°W;,.
 * Aporé River: right; BR (Goiás and Mato Grosse do Sul border); -19.45806°N, -50.94056°W;.
 * Corrente River (Paranaíba River): right; BR (Goiás); -19.31167°N, -50.83861°W;.
 * Claro River (Paranaíba River): right; BR (Goiás); -19.13222°N, -50.64444°W;.
 * Doce River (Goiás): left; BR; -18.35667°N, -51.23806°W;.
 * São Simão Dam
 * Tijuco River: left; BR (Minas Gerais); -18.68028°N, -50.06889°W;.
 * Da Prata River (Tijuco River): left; BR.
 * Dos Bois River (Paranaíba River): right; BR (Goiás).
 * Rio Verdão: right; BR.
 * Meia Ponte River: right; BR (Goiás); -18.54417°N, -49.59667°W;.
 * Cachoeira Dourada Dam
 * Itumbiara Dam
 * Araguari River (Minas Gerais) (also Das Velhas River): left; BR; -18.345°N, -48.63472°W;
 * Uberabinha River:
 * Quebra-Anzol River:
 * Emborcação Dam
 * São Marcos River: right; BR; -18.24556°N, -47.61222°W;.
 * Verde River (upper Paranaíba River): right; BR; -23.60028°N, -48.4425°W;.