Olga Vladimirovna Smirnova (; born May 11, 1979 in Novocheboksarsk, Russian SFSR) is an amateur Russian-born Kazakhstani freestyle wrestler, who played for the women's lightweight category. She is a two-time Olympian, a three-time medalist at the European Senior Championships, and a gold medalist for the 50 kg class at the 1996 World Wrestling Championships in Sofia, Bulgaria. Smirnova also added a silver medal from the 2006 Asian Games in Doha, Qatar, and bronze from the 2007 World Wrestling Championships in Baku, Azerbaijan, representing her adopted nation Kazakhstan.