Olga Nikolayevna Novokshchenova (, 29 November 1974) is a Russian Synchro-swimmer.
She has two Olympic gold medals (2000, 2004), and a winner of World (1997, 1998, 2000) and European Championships (1993, 1995, 1997, 1999, 2000, 2004), World Cups and other tournaments.
She is a member of National team since 1992. Now, she is the manager of public relations for Russian Paralympic Committee. She also teaches synchronized swimming in Port Antonio, Jamaica.