| Augustus | founder of Julio-Claudian dyn… | -63–14 BC |
| Gae Aulenti | Italian architect, lighting a… | 1927–2012 |
| Robert Aumann | Israeli-American mathematician | 1930 |
| Aron Brand Auraban | Israeli physician | 1910–1977 |
| Aurangzeb | Sixth Mughal Emperor | 1618–1707 |
| Marcus Aurelius | Emperor of Ancient Rome | 121–180 |
| Sri Aurobindo | Indian nationalist, freedom f… | 1872–1950 |
| Ausonius | poet | 310–395 |
| Jane Austen | English novelist | 1775–1817 |
| Paul Auster | novelist, poet, essayist, scr… | 1947 |
| Austin | | |
| Alfred Austin | British writer and poet | 1835–1913 |
| Benjamin Fish Austin | Nineteenth-century Canadian e… | 1850–1933 |
| J. L. Austin | English philosopher | 1911–1960 |
| Lloyd Austin | American military officer and… | 1953 |
| Mark Curtis (British author) | British journalist and histor… | |
| John Avanzini | American televangelist, bible… | 1936 |
| Erick Avari | Indian actor | 1952 |
| John Lubbock, 1st Baron Avebury | British banker, Liberal polit… | 1834–1913 |
| Richard Avedon | American photographer | 1923–2004 |
| Averroes | Medieval Arab scholar and phi… | 1126–1198 |
| Avicenna | medieval Persian polymath, ph… | 980–1037 |
| Lixion Avila | American meteorologist | 1950 |
| João Braz de Aviz | Catholic cardinal | 1947 |
| John Avlon | American journalist | 1973 |
| Uri Avnery | Israeli writer | 1923–2018 |
| Henriette Avram | American computer programmer … | 1919–2006 |
| Ameer Muhammad Akram Awan | Pakistani Sufi leader | 1934–2017 |
| Cam F. Awesome | American boxer | 1988 |
| Hassan Aweys | Somalian politician | 1935 |
| Awkwafina | actress and rapper from New Y… | 1988 |
| Ibukun Awosika | Nigerian business magnate | 1962 |
| Alan Axelrod | American historian | 1952 |
| Robert Axelrod | American political scientist | 1943 |
| Hoyt Axton | American country singer | 1938–1999 |
| Ami Ayalon | Israeli politician | 1945 |
| Alan Ayckbourn | English playwright | 1939 |
| Alfred Jules Ayer | English philosopher | 1910–1989 |
| Dan Aykroyd | Canadian film actor | 1952 |
| Steve Aylett | English satirical author | 1967 |
| Massad Ayoob | American firearms and self-de… | 1948 |
| Ed Ayres | American magazine editor | 1941 |
| Pam Ayres | English poet, songwriter and … | 1947 |
| William Edmondstoune Aytoun | British writer and lawyer | 1813–1865 |
| Shiva Ayyadurai | inventor | 1963 |
| Jagan Nath Azad | Indian writer (1918-2004) | 1918–2004 |
| Iggy Azalea | Australian rapper | 1990 |
| Malcolm Azania | Canadian politician | 1969 |
| Michael Azerrad | American musician and writer | 1961 |
| Walmor Oliveira de Azevedo | Catholic bishop | 1954 |
| Nnamdi Azikiwe | First President of Nigeria | 1904–1996 |
| Khursheed Kamal Aziz | historian | 1927–2009 |
| Rafidah Aziz | Malaysian politician | 1943 |
| Salman Aziz | Bangladeshi independent autho… | 1993 |
| Talal bin Abdul Aziz | Member of House of Saud | 1931–2018 |
| Tariq Aziz | Iraqi Foreign Minister under … | 1936–2015 |
| Abu Azmi | Indian politician | 1955 |
| José María Aznar | Spanish President from 1996 t… | 1953 |
| Kiyohiko Azuma | Japanese manga artist | 1968 |
| Joxe Azurmendi | Basque writer | 1941 |
| Abdullah Azzam | Palestinian Sunni Islamic sch… | 1941–1989 |
| John G. Azzopardi | | 1929–2013 |
