Abram Model - Abram Model was a Russian chess master, although he had his master title taken away by the Soviet chess authorities due to lack of results.
Aivars Gipslis - Aivars Ģipslis was a Latvian chess FIDE Grandmaster and also an ICCF Grandmaster, and a chess writer.
Aleksander Wojtkiewicz - Aleksander Wojtkiewicz was an International Grandmaster of chess.
Alexander Koblencs - Alexander Koblents was a Latvian chess International Master, trainer, and writer.
Alexander Shabalov - Alexander Shabalov is an American chess grandmaster, the multiple winner of the U.S. Chess Championships; he was the 2007 US Champion.
Alexei Shirov - Alexei Dmitrievich Shirov is a chess grandmaster.
Alvis Vitolinš - Alvis Vītoliņš was a Latvian chess master.
Andreas Ascharin - Andreas Ascharin was a Baltic-Russian chess master.
Anna Hahn (chess player) - Anna Hahn is an American chess player with the title of Woman International Master.
Arkadij Naiditsch - Arkadij Naiditsch is a German chess Grandmaster who was the clear winner of the Dortmund Sparkassen 2005 Tournament, ahead of higher-rated and well-known players such as Loek Van Wely, Veselin T...
Aron Nimzowitsch - Aron Nimzowitsch was a Latvian-born Danish unofficial chess grandmaster and a very influential chess writer.