Olga Kotlyarova (born 12 April 1976 in Sverdlovsk) is a Russian runner.

She used to compete mainly in 400 metres, and has an Olympic bronze medal from 2000 in relay.

She is also a world champion (indoor and outdoor) in this event.

In 2005, she concentrated more on the 800 metres distance, managing to set a new personal best and to finish fourth at the World Athletics Final.

This biographical article relating to Russian athletics is a stub.