See main article: 1979 US Open (tennis).
Tracy Austin defeated the four-time defending champion Chris Evert in the final, 6–4, 6–3 to win the women's singles tennis title at the 1979 US Open. Austin became the youngest US Open champion in the Open Era, aged 16 years and 9 months.
The seeded players are listed below. Tracy Austin is the champion; others show the round in which they were eliminated.
See main article: 1979 US Open – Women's singles qualifying.