Svetlána Aleksándrovna Kuznetsóva (Cyrillic: ; born June 27, 1985) is a Russian professional tennis player who is currently ranked World No. 3. She won the 2004 US Open singles title and was the runner-up in singles at the 2006 French Open and the 2007 US Open, losing both finals to Justine Henin in straight sets.

The surname Kuznetsova (feminine form for Kuznetsov) has the -tsov, -tsova syllable accented in Russian.