The 1989 Virginia Slims of California was a women's tennis tournament played on indoor carpet courts at the Oakland-Alameda County Coliseum Arena in Oakland, California in the United States and was part of Category 4 tier of the 1989 WTA Tour. The tournament ran from February 20 through February 26, 1989. Third-seeded Zina Garrison won the singles title.
| 1989 Virginia Slims of California | |
|---|---|
| Date | February 20 – 26 |
| Edition | 18th |
| Category | Category 4 |
| Draw | 32S / 16D |
| Prize money | $250,000 |
| Location | Oakland, California, U.S. |
| Venue | Oakland-Alameda County Coliseum Arena |
| Champions | |
| Singles | |
 Zina Garrison | |
| Doubles | |
Patty Fendick /  Jill Hetherington | |
Finals
editSingles
edit Zina Garrison defeated 
Larisa Savchenko 6–1, 6–1
- It was Garrison's 2nd title of the year and the 19th of her career.
Doubles
edit Patty Fendick / Jill Hetherington defeated Larisa Savchenko / Natasha Zvereva 7–5, 3–6, 6–2
- It was Fendick's 3rd title of the year and the 11th of her career. It was Hetherington's 2nd title of the year and the 9th of her career.