Olga Firsova (born April 23, 1976) is a former professional basketball player.
Firsova earned a degree in marketing and international business.
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|- | align="left" | 2000 | align="left" | New York |9||0||2.1||40.0||0.0||80.0||0.4||0.1||0.0||0.1||0.2||1.3 |- | align="left" | Career | align="left" | 1 year, 1 team |9||0||2.1||40.0||0.0||80.0||0.4||0.1||0.0||0.1||0.2||1.3 |-
|- | align="left" | 2000 | align="left" | New York |3||0||2.0||75.0||0.0||0.0||0.3||0.0||0.0||0.0||0.0||2.0 |- | align="left" | Career | align="left" | 1 year, 1 team |3||0||2.0||75.0||0.0||0.0||0.3||0.0||0.0||0.0||0.0||2.0 |-
She became a United States citizen on July 25, 2008.