Olga Igorevna Zaytseva (Russian: Ольга Игоревна Зайцева; born November 10, 1984, in Kaliningrad) is a Russian sprint athlete.
Zaytseva won the bronze medal in the 400 m at the 2006 European Athletics Championships in Gothenburg, as well as a gold medal in the 4 × 400 m relay.
She was also part of the 4 × 400 m relay team for Russia that set the world record for the indoor event in 2006.