1989 Virginia Slims of Houston

The 1989 Virginia Slims of Houston was a women's tennis tournament played on outdoor clay courts at the Westside Tennis Club in Houston, Texas in the United States that was part of the Category 4 tier of the 1989 WTA Tour. The tournament was held from April 24 through April 30, 1989. Unseeded Monica Seles won the singles title.

Singles
Monica Seles defeated 🇺🇸 Chris Evert 3–6, 6–1, 6–4
 * It was Seles' only title of the year and the 1st of her career.

Doubles
🇺🇸 Katrina Adams / 🇺🇸 Zina Garrison defeated 🇺🇸 Gigi Fernández / 🇺🇸 Lori McNeil 6–3, 6–4
 * It was Adams' 3rd title of the year and the 7th of her career. It was Garrison's 2nd title of the year and the 19th of her career.