| Rasheed Araeen | English artist | 1935 |
| Yasser Arafat | former Palestinian President,… | 1929–2004 |
| François Arago | French mathematician, physici… | 1786–1853 |
| Catherine of Aragon | first wife of Henry VIII of E… | 1485–1536 |
| Louis Aragon | French poet, novelist and edi… | 1897–1982 |
| Francisco Aragón | poet | 1968 |
| Hiromu Arakawa | award winning Japanese manga … | 1973 |
| Sadao Araki | Japanese general | 1877–1966 |
| Marie Arana | American journalist | 1949 |
| János Arany | Hungarian writer | 1817–1882 |
| Roscoe Arbuckle | American silent film actor, c… | 1887–1933 |
| Diane Arbus | American photographer and aut… | 1923–1971 |
| John Arbuthnot | | |
| Joan of Arc | French folk heroine and Roman… | 1412–1431 |
| Luis Arce | President of Bolivia | 1963 |
| Joseph Arch | British politician | 1826–1919 |
| Jeffrey Archer | English author and former pol… | 1940 |
| Archilochus | Ancient Greek lyric poet | -680–-645 BC |
| Archimedes | Greek mathematician, physicis… | -287–-212 BC |
| Archpoet | 12th century poet | 1130–1165 |
| Archytas | ancient Greek philosopher | -428–-347 BC |
| Don Arden | English producer | 1926–2007 |
| Paul Arden | writer | 1940–2008 |
| Jacinda Ardern | Prime Minister of New Zealand | 1980 |
| Robert Ardrey | Screenwriter and author of se… | 1908–1980 |
| Elvira Arellano | Mexican illegal immigrant and… | 1975 |
| Reinaldo Arenas | Cuban poet/novelist/playwright | 1943–1990 |
| Lee Arenberg | American actor | 1962 |
| Hannah Arendt | Jewish-American political the… | 1906–1975 |
| Pietro Aretino | Italian author, playwright, p… | 1492–1556 |
| Asia Argento | Italian actress, film directo… | 1975 |
| Sherry Argov | American writer | 1977 |
| José Argüelles | American author and artist | 1939–2011 |
| Chris Argyris | American business theorist/Pr… | 1923–2013 |
| Dan Ariely | Israeli American professor of… | 1967 |
| Austin Aries | professional wrestler | 1978 |
| Abdul Rahman Arif | President and Prime Minister … | 1916–2007 |
| Frank Martinus Arion | writer and poet | 1936–2015 |
| Ludovico Ariosto | Italian poet | 1474–1533 |
| Aristophanés | Athenian playwright of Old Co… | -448–-386 BC |
| Aristotle | Classical Greek philosopher, … | -384–-321 BC |
| Arius | priest in Alexandria; founder… | |
| Guru Arjan | The fifth Guru of Sikhism | 1563–1606 |
| Nima Arkani-Hamed | American-Canadian physicist | 1972 |
| Richard Arkwright | textile entrepreneur; develop… | 1732–1792 |
| John Arlott | English sports commentator an… | 1914–1991 |
| Allisyn Ashley Arm | American actress | 1996 |
| Ayi Kwei Armah | Ghanaian writer | 1939 |
| Joan Armatrading | British singer-songwriter | 1950 |
| Dick Armey | American politician | 1940 |
| Simon Armitage | Poet, playwright, novelist | 1963 |
| Richard Armour | American writer | 1906–1989 |
| Billie Joe Armstrong | American singer and guitarist | 1972 |
| Edwin Howard Armstrong | American electrical engineer … | 1890–1954 |
| Jennifer Armstrong | American children's writer | 1961 |
| Joe Armstrong | British computer scientist | 1950–2019 |
| John Armstrong | British poet | 1709–1779 |
| Karen Armstrong | author and comparative religi… | 1944 |
| Kelley Armstrong | Canadian writer | 1968 |
| Kristin Armstrong | American road bicycle racer | 1973 |
| Lance Armstrong | professional cyclist from the… | 1971 |
| Louis Armstrong | American jazz trumpeter, comp… | 1901–1971 |
| Neil Armstrong | American astronaut; first per… | 1930–2012 |
| T. Alan Armstrong | | |
| Alethea Arnaquq-Baril | director | 1978 |
| Antoine-Vincent Arnault | French dramatist | 1766–1834 |
| Will Arnett | Canadian actor | 1970 |
| Gus Arnheim | American musician | 1897–1955 |
| Bettina von Arnim | German writer | 1785–1859 |
| Elizabeth von Arnim | Australian writer | 1866–1941 |
| Rolf Arnkil | | 1923–1964 |
| Arnobius | Christian apologist | 255–327 |
| Benedict Arnold | Continental and later British… | 1741–1801 |
| Dana Arnold | Middlessex uni prof | 1961 |
| Edwin Arnold | British poet and journalist | 1832–1904 |
| George Arnold | American author and poet | 1834–1865 |
| Kenneth Arnold | American aviator and business… | 1915–1984 |
| Matthew Arnold | English poet and cultural cri… | 1822–1888 |
| Thomas Arnold | English headmaster of Rugby S… | 1795–1842 |
| Vladimir I. Arnold | Russian mathematician | 1937–2010 |
| Jonathan Arnott | British politician | 1981 |
| Raymond Aron | French philosopher, sociologi… | 1905–1983 |
| Hans Arp | Alsatian, sculptor, painter, … | 1886–1966 |
| Arrian | Roman historian, public serva… | 89–175 |
| Kenneth Arrow | American economist | 1921–2017 |
| Stephen Arroyo | American astrologer, astrolog… | 1946 |
| Pedro Arrupe | Twenty-eighth Superior Genera… | 1907–1991 |
| Alp Arslan | | |
| Antonin Artaud | French-Occitanian poet, playw… | 1896–1948 |
| Bea Arthur | actress, singer, comedian | 1922–2009 |
| Chester A. Arthur | American politician, 21st Pre… | 1829–1886 |
| Kay Arthur | International Bible teacher/f… | 1933 |
| Keri Arthur | Australian writer | |
| Timothy Shay Arthur | Novelist, short story writer,… | 1809–1885 |
| W. Brian Arthur | American economist | 1946 |
| Yann Arthus-Bertrand | French photographer | 1946 |
| Ian Wilson (conceptual artist) | American artist, born 1940 | 1940–2020 |
| Paul Ryan (video artist) | American video artist | 1943–2013 |
| Lev Artsimovich | Soviet physicist | 1909–1973 |
| Debito Arudou | Author/activist with Japanese… | 1965 |
