1979 US Open – Mixed doubles

Betty Stöve and Frew McMillan were the defending champions, but lost in the final against Greer Stevens and Bob Hewitt. The score was 6–3, 7–5.

Seeds
• # Greer Stevens / Bob Hewitt (champions)

• # Betty Stöve /  Frew McMillan (final)

• # 🇺🇸 Betsy Nagelsen / 🇦🇺 Kim Warwick (first round)

• # 🇺🇸 Renée Richards / 🇷🇴 Ilie Năstase (semifinals)

• # 🇺🇸 Martina Navratilova / 🇺🇸 Bill Scanlon (semifinals)

• # 🇺🇸 Billie Jean King / 🇺🇸 Ben Testerman (second round, withdrew)