1991 Virginia Slims of Oklahoma
Date	February 18–24
Edition	6th
Category	Tier IV
Draw	32S / 16D
Prize money	$150,000
Surface	Hard / indoor
Location	Oklahoma City, OK, U.S.
Venue	The Greens Country Club
Champions
Singles
Jana Novotná
Doubles
Meredith McGrath / Anne Smith
← 1990 · Virginia Slims of Oklahoma · 1992 →

The 1991 Virginia Slims of Oklahoma was a women's tennis tournament played on indoor hard courts at The Greens Country Club in Oklahoma City, Oklahoma in the United States that was part of Tier IV of the 1991 WTA Tour. It was the sixth edition of the tournament was held from February 18 through February 24, 1991. First-seeded Jana Novotná won the singles title and earned $27,000 first-prize money.^[1][2]

Finals

Singles

Jana Novotná defeated Anne Smith 3–6, 6–3, 6–2

• It was Novotná's 2nd singles title of the year and the 5th of her career.

Doubles

Meredith McGrath / Anne Smith defeated Katrina Adams / Jill Hetherington 6–2, 6–4