A
- Jacob Aagaard (Denmark, Scotland, born 1973)
- Manuel Aaron (India, born 1935)
- István Abonyi (Hungary, 1886–1942)
- Gerald Abrahams (England, 1907–1980)
- Tatev Abrahamyan (Armenia, USA, born 1988)
- Leonardas Abramavičius (Lithuania, before 1912–1960)
- Jude Acers (USA, born 1944)
- Peter Acs (Hungary, born 1981)
- Michael Adams (England, born 1971)
- Weaver Adams (USA, 1901–1963)
- Utut Adianto (Indonesia, born 1965)
- András Adorján (Hungary, born 1950)
- Yochanan Afek (Israel, born 1952)
- Vladimir Afromeev (Russia, born 1954)
- Simen Agdestein (Norway, born 1967)
- Evgeny Agrest (Belarus, Sweden, born 1966)
- Georgy Agzamov (Uzbekistan, 1954–1986)
- Carl Ahues (Germany, 1883–1968)
- James Macrae Aitken (Scotland, 1908–1983)
- Ralf Åkesson (Sweden, born 1961)
- Anna Akhsharumova (Russia, USA, born 1957)
- Varuzhan Akobian (Armenia, USA, born 1983)
- Vladimir Akopian (Armenia, born 1971)
- Mohamad Al-Modiahki (Qatar, born 1974)
- Simon Alapin (Lithuania, 1856–1923)
- Vladimir Alatortsev (Russia, 1909–1987)
- Adolf Albin (Romania, 1848–1920)
- Lev Alburt (Russia, USA, born 1945)
- Alexander Alekhine (Russia, France 1892–1946)
- Alexei Alekhine (Russia, 1888–1939)
- Grace Alekhine (USA, England, France 1876–1956)
- Aleksej Aleksandrov (Belarus, born 1973)
- Evgeny Alekseev (Russia, born 1985)
- Hugh Alexander (England, 1899–1974)
- Aaron Alexandre (Germany, France, England 1765–1850)
- Nana Alexandria (Georgia, born 1949)
- Johann Baptist Allgaier (Germany, Austria, 1763–1823)
- Zoltán Almási (Hungary, born 1976)
- Izak Aloni (Poland, Israel, 1905–1985)
- Yoel Aloni (Israel, born 1937)
- Boris Alterman (Israel, born 1970)
- Friedrich Amelung (Estonia, Latvia, 1842–1909)
- Bassem Amin (Egypt, born 1988)
- Farrukh Amonatov (Tajikistan, born 1978)
- Bruce Amos (Canada, born 1946)
- An Yangfeng (China, born 1963)
- Viswanathan Anand (India, born 1969)
- Erik Andersen (Denmark, 1904–1938)
- Frank Anderson (Canada, 1928–1980)
- Adolf Anderssen (Germany, 1818–1879)
- Ulf Andersson (Sweden, born 1951)
- Dmitry Andreikin (Russia, born 1990)
- Zaven Andriasian (Armenia, born 1989)
- Dejan Antic (Serbia, born 1968)
- Rogelio Antonio Jr. (Philippines, born 1962)
- Vladimir Antoshin (Russia, 1929–1994)
- Oskar Antze (Germany, born 1878)
- Manuel Apicella (France, born 1970)
- Izaak Appel (Poland, 1905–1941)
- Fricis Apšenieks (Latvia, 1894–1941)
- Lev Aptekar (Ukraine, New Zealand, born 1936)
- José Joaquin Araiza (Mexico, 1900–1971)
- Ketevan Arakhamia-Grant (Georgia, born 1968)
- Walter Arencibia (Cuba, born 1967)
- Alexander Areshchenko (Ukraine, born 1986)
- Keith Arkell (England, born 1961)
- Romanas Arlauskas (Lithuania, Australia, born 1917)
- Jon Arnason (Iceland, born 1960)
- Dagur Arngrímsson (Iceland, born 1987)
- Levon Aronian (Armenia, born 1982)
- Lev Aronin (Russia, 1920–1983)
- Andreas Ascharin (Estonia, Latvia, 1843–1896)
- Jacob Ascher (England, Canada, 1841–1912)
- Konstantin Aseev (Russia, 1960–2004)
- Maurice Ashley (Jamaica, USA, born 1966)
- Hipólito Asis Gargatagli (Spain, born 1986)
- Karen Asrian (Armenia, 1980–2008)
- As-Suli (Abbasid Caliphate, c. 880 – 946)
- Lajos Asztalos (Austria-Hungary, Yugoslavia, Hungary, 1889–1956)
- Ekaterina Atalik (Russia, Turkey, born 1982)
- Suat Atalık (Turkey, born 1964)
- Henry Atkins (England, 1872–1955)
- Arnold Aurbach (Poland, France, c. 1888 – 1952)
- Yuri Averbakh (Russia, born 1922)
- Valeriy Aveskulov (Ukraine, born 1986)
- Herbert Avram (USA, 1913–2006)
- Boris Avrukh (Israel, born 1978)
- Zurab Azmaiparashvili (Georgia, born 1960)
Read more about this topic: List Of Chess Players