1991 US Open – Women's singles qualifying

Players who neither had high enough rankings nor received wild cards to enter the main draw of the annual US Open Tennis Championships participated in a qualifying tournament held over several days before the event.

Seeds
• # 🇫🇷 Isabelle Demongeot (second round)

• # 🇯🇵 Mana Endo (second round)

• # 🇫🇷 Sandrine Testud (second round)

• # 🇯🇵 Nana Smith (first round)

• # 🇩🇪 Maja Živec-Škulj (first round)

• # Eugenia Maniokova (qualified)

• # Stephanie Rottier (qualified)

• # Petra Kamstra (first round)

• # 🇧🇪 Sandra Wasserman (second round)

• # 🇫🇷 Nathalie Herreman (qualifying competition, lucky loser)

• # 🇨🇦 Rene Simpson (qualified)

• # Miriam Oremans (first round)

• # 🇺🇸 Ann Henricksson (second round)

• # 🇯🇵 Misumi Miyauchi (first round)

• # 🇵🇱 Katarzyna Nowak (qualified)

• # 🇦🇺 Michelle Jaggard-Lai (qualifying competition)

Qualifiers
• # 🇧🇪 Dominique Monami

• # 🇨🇦 Rene Simpson

• # 🇵🇱 Katarzyna Nowak

• # 🇫🇷 Sybille Niox-Château

• # 🇷🇺 Eugenia Maniokova

• # 🇩🇪 Eva Pfaff

• # Stephanie Rottier

• # 🇺🇸 Renata Marcinkowska

Lucky losers
• # 🇫🇷 Nathalie Herreman