| Rukmini Devi Arundale | Indian Bharatnatyam dancer | 1904–1986 |
| Aryabhata | Indian mathematician-astronom… | 476–550 |
| Muhammad Asad | Austro-Hungarian writer and a… | 1900–1992 |
| Talal Asad | Aanthropologist at the CUNY G… | 1932 |
| Zabel Sibil Asadour | Armenian writer | 1863–1934 |
| Catherine Asaro | American science-fiction writ… | 1955 |
| Sholem Asch | Polish-American novelist, dra… | 1880–1957 |
| Solomon Asch | American psychologist | 1907–1996 |
| Roger Ascham | English scholar and didactic … | 1515–1568 |
| Arik Ascherman | American rabbi | 1959 |
| Roy Ascott | British academic | 1934 |
| Mary Kay Ash | Entrepreneur | 1918–2001 |
| Timothy Garton Ash | British historian and author | 1955 |
| John Ashbery | poet from the United States | 1927–2017 |
| W. Ross Ashby | British psychiatrist | 1903–1972 |
| Jay Ashcroft | | 1973 |
| John Ashcroft | American politician | 1942 |
| Richard Ashcroft | English singer-songwriter | 1971 |
| Paddy Ashdown | British politician and diplom… | 1941–2018 |
| Arthur Ashe | American tennis player | 1943–1993 |
| Daisy Ashford | English writer | 1881–1972 |
| Scott Ashjian | American businessman | 1963 |
| Baruch Ashlag | Polish rabbi | 1907–1991 |
| Yehuda Ashlag | Orthodox Jewish Rabbi and Kab… | 1886–1954 |
| Anastasia Ashley | American surfer and model | 1987 |
| Jennifer Ashley | American author | 1974 |
| Maurice Ashley | Chess Grandmaster | 1966 |
| Robert Ashley | American composer | 1930–2014 |
| Ashoka | Indian emperor of the Maurya … | -304–-232 BC |
| Abdul-Azeez ibn Abdullaah Aal ash-Shaikh | Grand Mufti of Saudi Arabia | 1943 |
| Dore Ashton | art critic | 1928–2017 |
| Marvin J. Ashton | Apostle of the LDS Church | 1915–1994 |
| Henry Fountain Ashurst | United States Senator from Ar… | 1874–1962 |
| Isaac Asimov | American writer and professor… | 1920–1992 |
| Asjadi | persian poet | |
| Elias Aslaksen | Norwegian clergyman | 1888–1976 |
| Nadeem Aslam | British writer | 1966 |
| Reza Aslan | Iranian-American author, comm… | 1972 |
| Tarō Asō | 92nd Prime Minister of Japan | 1940 |
| Alain Aspect | French physicist | 1947 |
| Robert Lynn Asprin | American science fiction and … | 1946–2008 |
| H. H. Asquith | Former Prime Minister of the … | 1852–1928 |
| Margot Asquith | Anglo-Scottish socialite, aut… | 1864–1945 |
| Alberto Assa | Colombian eductor and transla… | 1909–1996 |
| As-Saffah | First Abbasid caliph | 722–754 |
| Roberto Assagioli | Italian psychiatrist and pion… | 1888–1974 |
| Julian Assange | Australian editor, activist, … | 1971 |
| Abu Nasr as-Sarraj | | |
| François Asselineau | French politician | 1957 |
| Machado de Assis | Brazilian writer | 1839–1908 |
| Francis of Assisi | Catholic saint and founder of… | 1182–1226 |
| Jan Assmann | German egyptologist | 1938 |
| Azali Assoumani | President of Comoros | 1959 |
| Fred Astaire | American dancer, singer, acto… | 1899–1987 |
| Mary Astell | English feminist writer | 1666–1731 |
| Rick Astley | British singer and songwriter | 1966 |
| Thea Astley | Australian novelist | 1925–2004 |
| Elizabeth Aston | English writer | 1948–2016 |
| Brooke Astor | Socialite, writer, Philanthro… | 1902–2007 |
| John Jacob Astor | German-American businessman | 1763–1848 |
| Miguel ángel Asturias | colombia | 1899–1974 |
| Almazbek Atambayev | President of Kyrgyzstan | 1956 |
| Mustafa Kemal Atatürk | Turkish army officer, revolut… | 1881–1938 |
| Tex Atchison | American musician | 1912–1982 |
| Pandurang Shastri Athavale | Indian philosopher, spiritual… | 1920–2003 |
| Athenaeus | ancient greek writer | 170–223 |
| Edwin Atherstone | British writer | 1788–1872 |
| Nancy Atherton | American writer | 1955 |
| Michael Atiyah | British mathematician | 1929–2019 |
| Peter Atkins | British chemist | 1940 |
| Kate Atkinson | | |
| Rowan Atkinson | English actor, comedian, and … | 1955 |
| Ayo-Maria Atoyebi | | 1944 |
| Scott Atran | Anthropologist | 1952 |
| Atrios | | |
| Mohamed Atta | Egyptian hijacker and one of … | 1968–2001 |
| Jacques Attali | French economist | 1943 |
| A. A. Attanasio | writer | 1951 |
| Dave Attell | comedian | 1965 |
| David Attenborough | British broadcaster and natur… | 1926 |
| Atticus | pseudonym of Canadian actor a… | |
| Attila | King of the Hunnic Empire | 406–453 |
| Clement Attlee | Former Prime Minister of the … | 1883–1967 |
| Abd al-Bari Atwan | Palestinian journalist | 1950 |
| Lee Atwater | American political consultant… | 1951–1991 |
| Amelia Atwater-Rhodes | Novelist | 1984 |
| Margaret Atwood | Canadian writer | 1939 |
| Harriet Auber | British poet, hymnwriter | 1773–1862 |
| René Auberjonois | | |
| John Aubrey | English writer and antiquarian | 1626–1697 |
| Edward St. Aubyn | British writer | 1960 |
| Louis Auchincloss | Lawyer, novelist, historian, … | 1917–2010 |
| Kevyn Aucoin | American make-up artist and p… | 1962–2002 |
| W. H. Auden | Anglo-American poet | 1907–1973 |
| Matthew Ishaya Audu | Nigerian catholic priest | 1959 |
| John James Audubon | American ornithologist, natur… | 1785–1851 |
| Jean M. Auel | Novelist | 1936 |
| Erich Auerbach | German Philologist | 1892–1957 |
| Red Auerbach | Hall of Fame basketball coach | 1917–2006 |
| Aurelius Augustinus | early Christian theologian an… | 354–430 |
