| Aoshima, Hiroshi (1955 - ) Japan |
| Aperghis, Georges (1945 - ) France |
| ApIvor, Denis (1916 - 2004) United Kingdom |
| Apostel, Hans Erich (1901 - 1972) Austria |
| Applebaum, Louis (1918 - 2000) Canada |
| Applebaum, Mark (1967 - ) U.S.A. |
| Aracil Avila, Alfredo (1954 - ) Spain |
| Aranda Rojas, Pablo Esteban (1960 - ) Chile |
| Arányi-Aschner, Georg (1923 - ) Hungary |
| Arason, Stefán (1978 - ) Denmark |
| Arató, István (1910 - 1980) Hungary |
| Araújo, Francisco (1949 - ) Brazil |
| Arbolini, Luigi (1947 - ) Italy |
| Arcà, Paolo (1953 - ) Italy |
| Archer, Violet (1913 - 2000) Canada |
| Arcoleo, Denian (1963 - ) United Kingdom |
| Arcuri, Serge (1954 - ) Canada |
| Ardévol, José (1911 - 1981) Cuba |
| Arefiev, Dmitry (1983 - ) Ukraine |
| Arenas Fuentes, Mauricio (1964 - ) Chile |
| Arend, Andreas (? - ) Germany |
| Argelli, Carlo (1969 - ) Italy |
| Argento, Dominick (1927 - ) U.S.A. |
| Argersinger, Charles (1951 - ) U.S.A. |
| Argiro, James (1950 - ) |
| Argosh, Richard Steven (? - ) |
| Arho, Anneli (1951 - ) Finland |
| Ariani, Fernando (1959 - ) Brazil |
| Arias, Luís (1940 - ) |
| Arias Salazar, José Alberto (1984 - ) Costa Rica |
