Wikipedia:WikiProject Mathematics/List of mathematicians (A)

A

 * A'Campo, Norbert (Switzerland, born 1941)
 * A., Choudum S. (India, born 1947)
 * Aaboe, Asger (Denmark, 1922–2007)
 * Aalen, Odd (Norway, born 1947)
 * Aanderaa, Stål (Norway, born 1931)
 * Aardal, Karen (Norway/Netherlands, born 1961)
 * van Aardenne, Gijs (Netherlands, 1930–1995)
 * Abakanowicz, Bruno (Russia/Poland/Lithuania, 1852–1900)
 * Abarzhi, Snezhana (Australia/Russia, ?–?)
 * Abate, Marco (Italy, born 1962)
 * Abbasbandy, Saeid (Iran, born 1967)
 * Abbaszadeh, Maleyka (Azerbaijan/Soviet Union, born 1953)
 * Abbo of Fleury (?, 940s–1004)
 * Abbott, Thomas Kingsmill (Ireland, 1829–1913)
 * Abbt, Thomas (Germany, 1738–1766)
 * Abda, Amel Ben (Tunisia, ?–?)
 * Abdelrahman, Hanan Mohamed (Egypt/Norway, ?–?)
 * Abdulle, Assyr (Switzerland, 1971–2021)
 * ibn Abdun al-Jabali, Mohammed (Medieval Spain, ?–?)
 * Abebe, Rediet (Ethiopia, born 1991)
 * Abel, Niels Henrik (Norway, 1802–1829)
 * Abelson, Harold (United States, born 1947)
 * Abercrombie, Alexander (England, born 1949)
 * al-Abhari, Athir al-Din (Persia, 1200–1265)
 * Abhyankar, Shreeram Shankar (India, 1930–2012)
 * Abian, Alexander (Armenia, 1923–1999)
 * Abibi, Daniel (Congo, born 1942)
 * Abikoff, William (United States, born 1944)
 * Abiyev, Asker (Azerbaijan, born 1934)

Abl

 * Ablowitz, Mark J. (United States, born 1945)
 * Aboufadel, Edward (USA, ?–?)
 * Abraham, Ralph (United States, born 1936)
 * Abrahams, David (England, born 1958)
 * D'Abramo, Germano (Italy, born 1973)
 * Abramov, Sergei (mathematician) (Russia, born 1957)
 * Abramovich, Dan (USA, born 1963)
 * Abramowicz, Izabela (Poland, 1889–1973)
 * Abramowicz, Kazimierz (Poland, 1889–1936)
 * Abramowitz, Milton (United States, 1915–1958)
 * Abrosimov, Alexander (Russia/Soviet Union, 1948–2011)
 * Abu-Libdeh, Hasan (Palestine, born 1954)
 * Abubakar, Abdusalam (Ireland, born 1990)
 * Abubakar, Iya (Nigeria, born 1934)
 * Achenwall, Gottfried (Germany, 1719–1772)
 * Ackerman, Nate (USA, born 1978)
 * Ackermann, Wilhelm (Germany, 1896–1962)
 * Ackermans, Stan (Netherlands, 1936–1995)
 * Aczel, Amir (Israel, 1950–2015)
 * Aczél, János (Canada/Hungary, 1924–2020)
 * Aczel, Peter (Britain, born 1941)
 * Adair, John (Scotland, 1660–1718)
 * Adalbold II of Utrecht (Netherlands, 975–1026)
 * Adam, Jehan (France, ?–?)
 * Adams, Carlisle (Canada, ?–?)
 * Adams, Clarence Raymond (United States, 1898–1965)
 * Adams, Colin (United States, born 1956)
 * Adams, Edwin Plimpton (United States, 1878–1956)
 * Adams, Jeffrey (United States, born 1955)
 * Adams, John Couch (Britain, 1819–1892)
 * Adams, John Frank (England, 1930–1989)
 * Adams, Karl (Switzerland, 1811–1849)
 * Adams, Louise Doris (Britain, ?–1965)
 * Adams, Rachel Blodgett (?, 1884–1972)
 * Adamsky, Viktor (Russia/Soviet Union, 1923–2005)
 * Adamyan, Vadym (Ukraine/Ethnic Armenia/Soviet Union, born 1938)

Adc

 * Adcock, Frank (Britain, 1886–1968)
 * Adelard of Bath (Medieval England, 1080s–1150s)
 * Adelbulner, Michael (Germany, 1702–1779)
 * Adelson-Velsky, Georgy Maximovich (Soviet Union, 1922–2014)
 * Adelstein, Abraham Manie (Britain, 1916–1992)
 * Adem, Alejandro (Canada/Mexico, born 1961)
 * Adem, José (?, 1921–1991)
 * Ademaj, Eshref (Albania, 1940–1994)
 * Adhemar, Joseph Alphonse (France, 1797–1862)
 * Adian, Sergei (Ethnic Armenia/Russia/Soviet Union, 1931–2020)
 * Adiprasito, Karim (Germany, born 1988)
 * Adler, August (Czech Republic/Austria, 1863–1923)
 * Adler, Irving (USA, 1913–2012)
 * Adler, Jill (South Africa, born 1951)
 * Adler, Mark (United States, born 1959)
 * Adler, Roy (United States, 1931–2016)
 * Ado, Igor Dmitrievich (Soviet Union, 1910–1983)
 * Adomian, George (Ethnic Armenia, 1922–1996)
 * Adrain, Robert (Ireland, 1775–1843)
 * Adrastus of Cyzicus (?, ?–?)
 * Adye, John (Britain, born 1939)
 * Aeneae, Henricus (Netherlands, 1743–1810)
 * Aeppli, Alfred (Switzerland, born 1894)
 * Afanasyeva, Tatyana Alexeyevna (Imperial Russia, 1876–1964)
 * Afghan, Sediq (Afghanistan, born 1958)
 * Afia, Aaron (Greece, ?–?)
 * ibn Aflah, Jabir (Arabia, 1100–1150)
 * Afraimovich, Valentin (Russia/Soviet Union, 1945–2018)
 * Aftalion, Amandine (France, born 1973)
 * Aganagić, Mina (Bosnia and Herzegovina, ?–?)
 * Agarwal, Pankaj K. (India, ?–?)
 * Agarwal, Ravi (India, born 1947)

Agg

 * Aggiunti, Niccolò (Italy, 1600–1635)
 * Aghababyan, Levon (Armenia, 1887–1915)
 * Agler, Jim (USA, ?–?)
 * Agmon, Shmuel (Israel, born 1922)
 * Agnesi, Maria Gaetana (Italy, 1718–1799)
 * Agnew, Alfie (United States, born 1969)
 * Agnew, Ralph Palmer (United States, 1900–1986)
 * Agol, Ian (United States, born 1970)
 * Agostinelli, Cataldo (Italy, 1894–1988)
 * Agostini, Amedeo (Italy, 1892–1958)
 * Agranovich, Mikhail (Russia/Soviet Union, 1931–2017)
 * Agrawal, Manindra (India, born 1966)
 * Agrest, Matest M. (Russia, 1915–2005)
 * Agricola, Ilka (Netherlands/Germany, born 1973)
 * Agrippa, Camillo (Italy, ?–1590s)
 * d'Aguilon, François (Belgium, 1567–1617)
 * Agwu, Nkechi (Nigeria, born 1962)
 * Aharoni, Ron (Israel, born 1952)
 * Aharonov, Dorit (Israel, born 1970)
 * ibn al-Ahdab, Isaac (?, 1350s–1420s)
 * Ahin, Bendich (Medieval France, ?–1402)
 * Ahlfors, Lars Valerian (Finland, 1907–1996)
 * Ahlswede, Rudolf (Germany, 1938–2010)
 * ibn Ahmad al-Nasawī, Alī (Medieval Persia, 1010–1075)
 * Ahmad, Ziauddin (India, 1873–1947)
 * Ahmadi, Amir Ali (Iran, ?–?)
 * Ahmadova, Gular (Azerbaijan, born 1965)
 * Ahmes (Egypt, 1680 BC–1620 BC)
 * Ahrens, Wilhelm (Germany, 1872–1927)
 * Ahsan, Riaz (Pakistan, 1951–2008)

Aig

 * Aigner, Alexander (Austria, 1909–1988)
 * Aigner, Martin (Austria, 1942–2023)
 * Aitchison, Beatrice (United States, 1908–1997)
 * Aitchison, John (Scotland, 1926–2016)
 * Aitken, Alexander Craig (New Zealand/Scotland, 1895–1967)
 * Aiyer, V. Ramaswamy (India, 1871–1936)
 * Aizenman, Michael (United States, born 1945)
 * Ajdukiewicz, Kazimierz (Poland, 1890–1963)
 * Ajtai, Miklós (Hungary, born 1946)
 * Akaike, Hirotugu (Japan, 1927–2009)
 * Akansu, Ali (Turkey, ?–?)
 * Akbar, Noreen Sher (Pakistan, ?–?)
 * Akbulut, Selman (Turkey, born 1949)
 * Akhiezer, Naum (Soviet Union, 1901–1980)
 * Akiba, Tadatoshi (Japan, born 1942)
 * Akiyama, Jin (Japan, born 1946)
 * Aksoy, Asuman (Turkey, ?–?)
 * Akveld, Meike (Switzerland, ?–?)
 * Alagic, Mara (Serbia, ?–?)
 * Alam, Ghulam Dastagir (Pakistan, 1933–2000)
 * Alaoglu, Leonidas (Canada/Greece, 1914–1981)
 * Alas, Mihailo Petrović (Serbia, 1868–1943)
 * Alavi, Yousef (USA, 1928–2013)
 * Albán, Carlos (Colombia, 1844–1902)
 * Albanese, Giacomo (Italy, 1890–1948)
 * Alben, Silas D. (United States, ?–?)
 * Albert of Saxony (philosopher) (Germany, 1316–1390)
 * Albert, Abraham Adrian (United States, 1905–1972)
 * Albert, Michael H. (Canada, born 1962)
 * Alberti, Giovanni (Italy, born 1965)
 * Albeverio, Sergio (Switzerland, born 1939)
 * Albrecht, Andreas (mathematician) (Germany, ?–?)

Alc

 * Alcan, Félix (France, 1841–1925)
 * de Alcega, Juan (Spain, ?–?)
 * Alcock, Lara (Britain, ?–?)
 * Alcuin (Medieval England, 735–804)
 * Alder, Mike (Australia, ?–?)
 * Alderson, Helen Popova (Russia/Britain, 1924–1972)
 * Aldous, David (United States/Britain, born 1952)
 * Aldroubi, Akram (USA, ?–?)
 * Alele-Williams, Grace (Nigeria, born 1932)
 * d'Alembert, Jean le Rond (France, 1717–1783)
 * Alesker, Semyon (Israel, born 1972)
 * Aleškevičienė-Statulevičienė, Aldona (Lithuania, 1936–2017)
 * Alexander of Villedieu (France, 1175–1240)
 * Alexander, Amir (Israel, born 1963)
 * Alexander, Archie (United States, 1888–1958)
 * Alexander, Conel Hugh O'Donel (Ireland, 1909–1974)
 * Alexander, Howard Wright (Canada/United States, 1911–1985)
 * Alexander, Stephanie B. (United States, ?–?)
 * Alexander, Stephen (United States, 1806–1883)
 * Alexanderson, Gerald L. (United States, 1933–2020)
 * Alexandrov, Aleksandr Danilovich (Russia/Soviet Union, 1912–1999)
 * Alexandrov, Pavel (Russia/Soviet Union, 1896–1982)
 * Alexeev, Valery (USA, ?–?)
 * Alexiewicz, Andrzej (Poland, 1917–1995)
 * Alexits, György (Hungary, 1899–1978)
 * Aley, Robert Judson (USA, 1863–1935)
 * Alford, W. R. (Red) (United States, 1937–2003)
 * Alfsen, Erik (Norway, 1930–2019)
 * ibn ʿAlī al-Qalaṣādī, Abū al-Ḥasan (Medieval Tunisia, 1412–1486)
 * Ali, Mir Masoom (United States, born 1937)
 * Ali, Mir Maswood (Canada, 1929–2009)
 * ibn Ali, Sind (?, ?–?)
 * Aliprantis, Charalambos D. (Greece, 1946–2009)
 * al‐Ishbili, Ibn al‐Ha'im (Medieval Arabia/Medieval Spain, ?–?)

Alj

 * Aljančić, Slobodan (Serbia/Yugoslavia, 1922–1993)
 * Alladi, Krishnaswami (India, born 1955)
 * Allakhverdiyev, Jalal (Azerbaijan, 1929–2017)
 * Allan, Graham (England, 1936–2007)
 * Allardice, Robert Edgar (Scotland, 1862–1928)
 * Allcock, Daniel (United States, ?–?)
 * Allé, Moritz (Czech Republic, 1837–1913)
 * Allen, Florence Eliza (United States, 1876–1960)
 * Allen, Linda J. S. (United States, ?–?)
 * Allen, Roy George Douglas (Britain, 1906–1983)
 * Allen, Thomas (England, 1542–1632)
 * Allendoerfer, Carl B. (United States, 1911–1974)
 * Allman, Elizabeth S. (United States, born 1965)
 * Allman, George Johnston (Britain, 1824–1904)
 * d'Allonville, Jacques (France, 1671–1732)
 * Allotey, Francis (Ghana, 1932–2017)
 * Almgren, Ann S. (United States, ?–?)
 * Almgren, Jr., Frederick J. (United States, 1933–1997)
 * Almgren, Robert (United States, ?–?)
 * Alon, Noga (Israel, born 1956)
 * Alperin, Jonathan Lazare (United States, born 1937)
 * Alperin, Roger C. (United States, 1947–2019)
 * Alpern, Steve (Britain, ?–?)
 * Alpert, Bradley (United States, ?–?)
 * Alspach, Brian (United States, born 1938)
 * Alt, Franz (Austria, 1910–2011)
 * Althöfer, Ingo (Germany, born 1961)
 * Altınel, Tuna (Turkey, born 1966)
 * Altman, Doug (Britain, 1948–2018)
 * Altschul, Stephen (United States, born 1957)

Alv

 * Alvarez, Melania (Mexico/Canada, ?–?)
 * Alvord, Benjamin (United States, 1813–1884)
 * Amaldi, Ugo (mathematician) (Italy, 1909–1954)
 * Amato, Vincenzo (Italy, 1881–1963)
 * Ambartzumian, Rouben V. (Armenia, born 1941)
 * Ambrose, Warren (United States, 1914–1995)
 * Ambrosetti, Antonio (Italy, born 1972)
 * Ambrosio, Luigi (Italy, born 1963)
 * D'Ambrosio, Ubiratan (?, 1932–2021)
 * Ambschel, Anton (Slovenia, 1746–1821)
 * Amegandjin, Julien (Togo, born 1940)
 * Amerio, Luigi (Italy, 1912–2004)
 * Amice, Yvette (France, 1936–1993)
 * Amici, Giovanni Battista (Italy, 1786–1863)
 * Amirà, Binyamin (Israel, 1896–1968)
 * Amirà, Divsha (Israel, 1899–1966)
 * Amit, Ilan (Israel, 1935–2013)
 * Amitsur, Shimshon (Israel, 1921–1994)
 * Amma, T. A. Sarasvati (India, 1918–2000)
 * Ammann, Robert (United States, 1946–1994)
 * Amodeo, Federico (Italy, 1859–1946)
 * Amoli, Taleb (Iran, 1580–1626)
 * D'Amore, Bruno (Italy, born 1946)
 * Amoroso, Luigi (Italy, 1886–1965)
 * Ampère, André-Marie (France, 1775–1836)
 * Amringe, John Howard Van (United States, 1836–1915)
 * Amsler-Laffon, Jakob (Switzerland, 1823–1912)
 * Amundson, Neal (United States, 1916–2011)
 * Amur, K. S. (India, born 1931)
 * analyst, Numerical (?, ?–?)
 * Anantharaman, Nalini (France, born 1976)
 * Anaxagoras (Ancient Greece, 500s BC–420s BC)
 * Anaximenes of Miletus (Ancient Greece, 585 BC–525 BC)

And

 * al-Andalusi, Said (Medieval Arabia, 1029–1070)
 * Anđelić, Tatomir (Serbia/Yugoslavia, 1903–1993)
 * Andersen, Aksel Frederik (Denmark, 1891–1972)
 * Andersen, Henning Haahr (Denmark, ?–?)
 * Andersen, Kirsti (Denmark, born 1941)
 * Anderson, Alexander (Scotland, 1580s–1620)
 * Anderson, David F. (United States, born 1978)
 * Anderson, George (England, ?–?)
 * Anderson, John Robert (Canada/United States, born 1947)
 * Anderson, Michael T. (United States, born 1950)
 * Anderson, Oskar (Germany/Imperial Russia, 1887–1960)
 * Anderson, Richard Davis (United States, 1922–2008)
 * Anderson, Robert (England, ?–?)
 * Anderson, Robert M. (Canada, born 1951)
 * Anderson, Theodore Wilbur (United States, 1918–2016)
 * Andrade, Jules (France, 1857–1933)
 * Andræ, Carl Christoffer Georg (Denmark, 1812–1893)
 * Andrásfai, Béla (Hungary, 1931–2023)
 * André, Désiré (France, 1840–1917)
 * André, Michel (mathematician) (Switzerland, 1936–2009)
 * André, Yves (France, born 1959)
 * André, Yves Marie (France, 1675–1764)
 * Andree, Richard V. (United States, 1911–1987)
 * Andreescu, Titu (Romania/USA, born 1956)
 * Andreev, Konstantin (Russia/Soviet Union, 1848–1921)
 * Andreini, Alfredo (Italy, 1870–1943)
 * Andréka, Hajnal (Hungary, born 1947)
 * Andreotti, Aldo (Italy, 1924–1980)
 * Andres, Juan (Spain, ?–?)
 * Andrew, Henry Martyn (Britain, 1846–1888)
 * Andrews, Annie Dale Biddle (United States, 1885–1940)
 * Andrews, Ben (?, ?–?)
 * Andrews, George (United States, born 1938)
 * Andrews, Grace (United States, 1869–1951)
 * Andrews, James J. (United States, 1930–1998)
 * Andrews, Peter B. (USA, born 1937)
 * Andrianov, Anatoli N. (Soviet Union, born 1936)
 * Andrunakievich, Vladimir (Moldova/Soviet Union, 1917–1979)

Ang

 * degli Angeli, Stefano (Italy, 1623–1697)
 * Angeloni, Domenico (Italy, 1748–1814)
 * Angenent, Sigurd (Netherlands, born 1960)
 * Anger, Carl Theodor (Germany, 1803–1858)
 * Anh, Lê Vũ (Vietnam, 1950–1981)
 * Ankeny, Nesmith (United States, 1927–1993)
 * Ann, Peng Tsu (Singapore, born 1936)
 * Anning, Norman H. (Canada, 1883–1963)
 * Anosov, Dmitri (Russia/Soviet Union, 1936–2014)
 * Anscombe, Francis (England, 1918–2001)
 * Anscombe, Frank (England/USA, 1918–2001)
 * Anselin, Luc (Belgium, born 1953)
 * Ansoff, Igor (USA, 1918–2002)
 * Anstice, Robert Richard (Britain, 1813–1853)
 * Anthemius of Tralles (Ancient Greece/Byzantium, 470s–534)
 * Anthonisz, Adriaan (Netherlands, 1541–1620)
 * Anthony, Herbert Douglas (England, 1892–1968)
 * Antipater (Ancient Greece, ?–?)
 * Antiphon (Ancient Greece, 480 BC–411 BC)
 * Antman, Stuart S. (United States, ?–?)
 * Antoine, Louis (France, 1888–1971)
 * Antonelli, Giovanni (Italy, 1818–1872)
 * Antonelli, Kathleen (Ireland, 1921–2006)
 * Aomoto, Kazuhiko (Japan, ?–?)
 * Apéry, Roger (Greece, 1916–1994)
 * Apfelbacher, Karl (Germany, ?–?)
 * Apian, Philipp (Germany, 1531–1589)
 * Apianus, Petrus (Germany, 1495–1552)
 * Apollonius of Perga (Ancient Greece, 260s BC–190s BC)
 * Apostol, Tom M. (Greece, 1923–2016)

App

 * Appel, Kenneth (United States, 1932–2013)
 * Appell, Paul Émile (France, 1855–1930)
 * Arad, Zvi (Israel, 1942–2018)
 * Arago, François Jean Dominique (France, 1786–1853)
 * Arai, Noriko H. (Japan, born 1962)
 * Arak, Taivo (Estonia, 1946–2007)
 * Arakelian, Norair (Armenia/Soviet Union, born 1936)
 * Arakelov, Suren (Ukraine/Soviet Union, born 1947)
 * Araki, Huzihiro (Japan, 1933–2022)
 * Araujo, Carolina (mathematician) (Brazil, ?–?)
 * Arbarello, Enrico (Italy, born 1945)
 * Arbel, Beno (Israel, 1939–2013)
 * Arbogast, Louis François Antoine (France, 1759–1803)
 * Arbogast, Todd (United States, ?–?)
 * Arbuthnot, John (England, 1667–1735)
 * Archdeacon, Dan (United States, 1954–2015)
 * Archibald, Raymond Clare (Canada, 1875–1955)
 * Archimedeans, The (Britain, ?–?)
 * Archimedes (Ancient Greece/Sicily, 280s BC–210s BC)
 * Archytas (Ancient Greece, 428 BC–347 BC)
 * d'Arcy, Patrick (Ireland, 1725–1779)
 * Ardelyan, Nikolai (Russia, born 1953)
 * Ardila, Federico (Colombia, born 1979)
 * Ardinghelli, Maria Angela (Kingdom of Naples, 1730–1825)
 * Arens, Richard Friederich (United States, 1919–2000)
 * Arenstorf, Richard (United States, 1929–2014)
 * Arf, Cahit (Turkey, 1910–1997)
 * Argand, Jean-Robert (France, 1768–1822)
 * Argoli, Andrea (Italy, 1570–1657)
 * Argyropoulos, Timoleon (Greece, 1847–1912)
 * Argyros, Isaac (Greece, born 1312)

Arh

 * Arhangelskii, Alexander (Russia, born 1938)
 * Arigbabu, Abayomi (Nigeria, ?–?)
 * Arıkan, Erdal (Turkey, born 1958)
 * Ārinš, Eižens (Latvia, 1911–1987)
 * Aris, Rutherford (Britain/United States, 1929–2005)
 * Aristarchus of Samos (Ancient Greece, 310s BC–230s BC)
 * Aristotle (Ancient Greece, 384 BC–322 BC)
 * Arkeryd, Leif (Sweden, born 1940)
 * Arkin, Esther (Israel, ?–?)
 * Arkin, Joseph (United States, 1923–2002)
 * Arlinghaus, Sandra (United States, ?–?)
 * Armero, Julio Garavito (Colombia, 1865–1920)
 * Armitage, Peter (England, born 1924)
 * Arnaud, Marie-Claude (France, ?–?)
 * Arnauld, Antoine (France, 1612–1694)
 * Arnold, David (USA, ?–?)
 * Arnold, Douglas N. (United States, born 1954)
 * Arnold, Vladimir Igorevich (Russia/Soviet Union, 1937–2010)
 * Arnoldi, Walter Edwin (United States, 1917–1995)
 * Arocena, Rodrigo (Uruguay, born 1947)
 * Aronhold, Siegfried Heinrich (Germany, 1819–1884)
 * Aronson, Donald (USA, ?–?)
 * Aronszajn, Nachman (Poland, 1907–1980)
 * Arora, Sanjeev (USA, born 1968)
 * Arous, Gérard Ben (France, born 1957)
 * Arratia, Richard (United States, ?–?)
 * Arrington, Elayne (United States, ?–?)
 * Arscott, Felix (Britain, 1922–1996)
 * Artemov, Sergei N. (USA/Russia, born 1951)
 * Arthur, James (Canada, born 1944)
 * Arthur, William (Scotland, 1894–1979)
 * de Artiga, Francisco (Spain, 1650–1711)
 * Artigue, Michèle (France, born 1946)
 * Artin, Emil (Ethnic Armenia, 1898–1962)
 * Artin, Michael (Germany, born 1934)
 * Artom, Emilio (Italy, 1888–1952)
 * Artstein, Shiri (Israel, born 1978)
 * Artzy, Rafael (Israel, 1912–2006)

Aru

 * Arutyunov, Aram (Russia, born 1953)
 * Arvesen, Ole Peder (Norway, 1895–1991)
 * Arveson, William (United States, 1934–2011)
 * Aryabhata (Medieval India/Ancient India, 476–550)
 * Arzelà, Cesare (Italy, 1847–1912)
 * Aṣ-Ṣaidanānī (?, ?–?)
 * Aschbacher, Michael (United States, born 1944)
 * Aschenbrenner, Matthias (Germany/United States, born 1972)
 * Asclepius of Tralles (Ancient Greece, ?–?)
 * Ascoli, Giulio (Italy, 1843–1896)
 * Ascoli, Guido (Jewish Italy, 1887–1957)
 * Aseev, Sergei (Russia, born 1957)
 * Ásgeirsson, Leifur (Iceland, 1903–1990)
 * Ash, Avner (United States, ?–?)
 * Ash, Michael Edward (Britain, 1927–2016)
 * Ashe, St George (Ireland, 1658–1718)
 * Ashrafi, Ali Reza (Iran, ?–?)
 * Ashraphijuo, Mehdi (Iran, ?–?)
 * Aşkar, Attila (Turkey, born 1944)
 * Askey, Richard (United States, 1933–2019)
 * Aslam, Chaudry Mohammad (Pakistan, 1900–1965)
 * Asley, Yasha (Iran, born 2003)
 * Asprey, Winifred (United States, 1917–2007)
 * Assani, Idris (United States, ?–?)
 * Assche, Gilles Van (Belgium, ?–?)
 * Asser, Günter (Germany, 1926–2015)
 * Astala, Kari (Finland, born 1953)
 * Atanassov, Krassimir (Bulgaria, born 1954)
 * ibn Athari, Mashallah (Medieval Persia, ?–810s)
 * Athey, Susan (United States, born 1970)
 * Athreya, Siva (India, born 1971)

Ati

 * Atiyah, Michael Francis (Britain, 1929–2019)
 * Atkin, A. O. L. (Britain, 1925–2008)
 * Atkinson, Frederick Valentine (Canada, 1916–2002)
 * Atkinson, Henry (England, 1781–1824)
 * Attalus of Rhodes (Ancient Greece, ?–?)
 * Atwood, George (England, 1745–1807)
 * Aubert, Karl Egil (Norway, 1924–1990)
 * Aubin, Thierry (France, 1942–2009)
 * Audin, Michèle (France, born 1954)
 * Auerbach, Herman (Poland, 1901–1942)
 * Auffinger, Antonio (Brazil, ?–?)
 * Augenstein, Bruno (Germany, 1923–2005)
 * Auger, Pierre (biologist) (France, born 1953)
 * Aumann, Georg (Germany, 1905–1980)
 * Aumann, Israel Robert John (Israel, born 1930)
 * Aurenhammer, Franz (Austria, born 1957)
 * Aurifeuille, Léon-François-Antoine (France, 1822–1882)
 * Auscher, Pascal (France, ?–?)
 * Auslander, Louis (United States, 1928–1997)
 * Auslander, Maurice (United States, 1926–1994)
 * Austin, James Murdoch (United States, 1915–2000)
 * Austin, Oscar Phelps (United States, 1848–1933)
 * Authement, Ray (United States, 1928–2020)
 * Autolycus of Pitane (Ancient Greece, 360s BC–290s BC)
 * Autonne, Léon (France, 1859–1916)
 * Avellaneda, Marco (Argentina, born 1955)
 * D'Avenant, Edward (England, 1596–1679)
 * Avery, Robert Stanton (United States, 1808–1894)
 * Avigad, Jeremy (United States, born 1968)
 * Avila, Artur (France, born 1979)
 * Avis, David (Britain, born 1951)

Avr

 * Avramov, Luchezar L. (Bulgaria, ?–?)
 * Avron, Arnon (Israel, born 1952)
 * Awerbuch-Friedlander, Tamara (?, ?–?)
 * Awodey, Steve (United States, ?, PhD 1997–?)
 * Ax, James (United States, 1937–2006)
 * Axelrod, Robert (United States, born 1943)
 * Axer, Aleksander (Poland, 1880–1948)
 * Axler, Sheldon (United States, born 1949)
 * Aynscom, Francis Xavier (?, 1624–1660)
 * Ayres, Frank J. (USA, 1901–1994)
 * Ayres, Leonard Porter (United States, 1879–1946)
 * Ayrton, Hertha (England, 1854–1923)
 * Ayyangar, A. A. Krishnaswami (India, 1892–1953)
 * Azuma, Kazuoki (Japan, born 1939)
 * Azumaya, Goro (Japan, 1920–2010)