1984 US Open – Mixed doubles

Elizabeth Sayers and John Fitzgerald were the defending champions but lost in the final 2–6, 7–5, 6–4 against Manuela Maleeva and Tom Gullikson.

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

• # 🇦🇺 Elizabeth Sayers / 🇦🇺 John Fitzgerald (final)

• # 🇺🇸 Kathy Jordan / 🇺🇸 Steve Denton (quarterfinals)

• # 🇺🇸 Barbara Potter / 🇺🇸 Ferdi Taygan (semifinals)

• # 🇺🇸 Sharon Walsh / 🇺🇸 Tony Giammalva (first round)

• # 🇺🇸 Bonnie Gadusek / 🇦🇺 Kim Warwick (first round)

• # 🇭🇺 Andrea Temesvári / Heinz Günthardt (third round)

• # 🇺🇸 Candy Reynolds / 🇦🇺 Michael Fancutt (quarterfinals)

• # 🇺🇸 Betsy Nagelsen / 🇺🇸 Butch Walts (third round)

• # 🇺🇸 Elise Burgin / 🇺🇸 Scott Davis (quarterfinals)

• # 🇺🇸 Paula Smith / 🇺🇸 Mel Purcell (quarterfinals)

• # 🇺🇸 Mary Lou Piatek / 🇺🇸 Robert Seguso (third round)

• # 🇧🇬 Manuela Maleeva / 🇺🇸 Tom Gullikson (champions)

• # Rosalyn Fairbank / 🇬🇧 Colin Dowdeswell (semifinals)

• # 🇺🇸 Wendy White / 🇺🇸 Bud Cox (first round)

• # 🇫🇷 Catherine Tanvier / 🇦🇺 Brad Drewett (second round)