| Artero, Juan Manuel (1969 - ) Spain |
| Artner, Norbert (1922 - 1971) Austria |
| Artyomov, Vyacheslav (1940 - ) Russia |
| Arvidsson-Bremmers, Per (1959 - ) Sweden |
| Arzoumanov, Valery (? - ) |
| Asafiev, Boris (1884 - 1949) Russia |
| Asaka, Mitsuru (1958 - ) Japan |
| Asami, Noboru (1921 - ) Japan |
| Asanger, Thomas (1988 - ) Austria |
| Asano, Katsuhiko (1960 - ) Japan |
| Ascioti, Nicholas Anthony (1974 - ) U.S.A. |
| Asencio, Vicente (1908 - 1979) Spain |
| Ásgeirsson, Jón (1928 - ) Iceland |
| Ashe, Whitney (1971 - ) U.S.A. |
| Asheim, Nils Henrik (1960 - ) Norway |
| Ashikawa, Satoshi (? - ) Japan |
| Asia, Daniel (1953 - ) U.S.A. |
| Asíns Arbó, Miguel (1916 - ) Spain |
| Askim, Peter (? - ) U.S.A. |
| Askin, Ali N. (1962 - ) Germany |
| Aslani, G.H. (1936 - ) Iran |
| Aslanyan, Noubar (1943 - ) Israel |
| Asmara, Michael (1956 - ) Indonesia |
| Asmus, Bernd (1959 - ) Germany |
| Asplund, Christian (? - ) Canada |
| Asplund, Jonas (1971 - ) Sweden |
| Asriel, André (1922 - ) Germany |
| Assad, Clarice (? - ) Brazil |
| Assad, Sérgio (1952 - ) Brazil |
| Assaf, Oded (1947 - ) Israel |
