Guntars Antoms (Latvian: Guntars Antoms; born July 24, 1960, in Riga) is a Latvian lawyer and chess player who holds the FIDE title of International Master (2001).

His first success came at the age of 14 when he won 4th place at the Latvian Junior Championship.

Three years later he shared first place with Edvīns Ķeņģis at the Latvian Junior Championship.

Antoms has been a steady participant in Latvian Chess Championship finals but in 2001 he won this tournament (ahead grandmasters Viesturs Meijers, Arturs Neikšāns, Jānis Klovāns, Zigurds Lanka, Ilmārs Starostīts).

Guntars Antoms is a member of board and vice president of Latvian Chess Federation.