See main article: 1978 French Open. Virginia Ruzici defeated the defending champion Mima Jaušovec in the final, 6–2, 6–2 to win the women's singles tennis title at the 1978 French Open.[1]
The seeded players are listed below. Virginia Ruzici is the champion; others show the round in which they were eliminated.
See main article: 1978 French Open – Women's singles qualifying.