Oleksandr Valeriyovych Lazeykin (; born 22 November 1982) is a Ukrainian sport shooter. Lazeykin represented Ukraine at the 2008 Summer Olympics in Beijing, where he competed in the men's 10 m air rifle, along with his teammate Artur Ayvazyan. He finished only in eleventh place by one point behind Austria's Thomas Farnik from the final attempt, for a total score of 594 targets.