| Champ: |  Andre Agassi |
| Runner: | Todd Witsken |
| Score: | 6–1, 6–3 |
| Type: | singles doubles |
| Main Name: | Pacific Coast Championships |
| Before Name: | Volvo Tennis San Francisco |
| After Name: | Volvo San Francisco |
| Draw: | 32 (4 / 3) |
| Seeds: | 8 |
See main article: 1990 Volvo San Francisco.
Brad Gilbert was the defending champion, but lost in the first round to Gary Muller.
Andre Agassi won the title by defeating Todd Witsken 6–1, 6–3 in the final.[1]