The 1991 Family Circle Cup was a women's tennis tournament played on outdoor clay courts at the Sea Pines Plantation on Hilton Head Island, South Carolina in the United States and was part of Tier I of the 1991 WTA Tour. It was the 19th edition of the tournament and ran from April 2 through April 8, 1991. Second-seeded Gabriela Sabatini won the singles title, her first at the event.^[1]

Gabriela Sabatini defeated Leila Meskhi 6–1, 6–1

• It was Sabatini's 3rd singles title of the year and the 18th of her career.

Claudia Kohde-Kilsch / Natasha Zvereva defeated Mary-Lou Daniels / Lise Gregory 6–4, 6–0

• It was Kohde-Kilsch's 2nd doubles title of the year and the 24th of her career. It was Zvereva's 2nd doubles title of the year and the 12th of her career.

• Official website
• ITF tournament edition details Archived 2017-04-09 at the Wayback Machine
• 1991 Main Draw