The 1989 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 and was part of the Category 2 tier of the 1989 Virginia Slims World Championship Series. It was the 4th edition of the tournament and ran from February 27 through March 5, 1989. Unseeded Manon Bollegraf won the singles title and earned $17,000 first-prize money.[1]
See main article: 1989 Virginia Slims of Oklahoma – Singles. Manon Bollegraf defeated Leila Meskhi 6–4, 6–4
See main article: 1989 Virginia Slims of Oklahoma – Doubles. 
Lori McNeil / Betsy Nagelsen defeated Elise Burgin / 
Elizabeth Smylie by walkover