Olga Vasilyevna Morozova (Russian: Ольга Васильевна Морозова) (born 22 February 1949 in Moscow, USSR) is a retired female tennis player who competed for the Soviet Union. She was the runner up in singles at the 1974 French Open and 1974 Wimbledon Championships.

Morozova won the Wimbledon junior's singles title in 1965 at the age of 16. Morozova was the first Russian tennis player to reach the singles final of a major tournament, when she was the runner-up at the 1972 Italian Open. Perhaps the peak of her career occurred in 1974, when she was the women's singles runner-up at Wimbledon and the French Open, losing to Chris Evert in both tournaments.

Morozova became the first Russian tennis player to win a Grand Slam title when she teamed with Evert to win the women's doubles championship at the French Open in 1974. Earlier, she and Alex Metreveli were the first players from the Soviet Union to reach a Grand Slam final when they teamed at Wimbledon in 1968, losing to Margaret Court and Ken Fletcher. They also reached the final at Wimbledon in 1970, losing to Rosemary Casals and Ilie Năstase.