Oleg Yaroslavovich Antonov (; born 28 July 1988) is a Russian-born Italian volleyball player, a member of the Italy men's national volleyball team and Italian club Trentino Volley, silver medalist of the 2015 World Cup, bronze medalist of the 2015 European Championship. He is the son of Yaroslav Antonov, a former Russian volleyball player, a 1988 Summer Olympics silver medalist for the Soviet Union.