1986 US Open – Mixed doubles

Martina Navratilova and Heinz Günthardt were the defending champions but only Navratilova competed that year with Peter Fleming.

Navratilova and Fleming lost in the final 6–4, 6–4 against Raffaella Reggi and Sergio Casal.

Seeds
Champion seeds are indicated in bold text while text in italics indicates the round in which those seeds were eliminated.

• # 🇺🇸 Martina Navratilova / 🇺🇸 Peter Fleming (final)

• # 🇺🇸 Kathy Jordan / 🇺🇸 Ken Flach (quarterfinals)

• # 🇦🇺 Elizabeth Smylie / 🇦🇺 John Fitzgerald (semifinals)

• # 🇺🇸 Betsy Nagelsen / 🇺🇸 Scott Davis (second round)

• # Bettina Bunge / 🇪🇸 Emilio Sánchez (semifinals)

• # 🇨🇦 Carling Bassett / 🇺🇸 Gary Donnelly (second round)

• # 🇺🇸 Mary Lou Piatek / 🇺🇸 Robert Van't Hof (first round)

• # 🇦🇺 Wendy Turnbull / 🇬🇧 John Lloyd (first round)