| Northern California Open | |
| Type: | defunct |
| Founded: | 1986 |
| Ended: | 1988 |
| Editions: | 3 |
| Event Name: | North Face Open (1986) |
| Tour: | WTA Tour (1986–88) |
| Surface: | Hard (1986–88) |
The Northern California Open is a defunct WTA Tour affiliated women's tennis tournament played from 1986 to 1988. It was held in Berkeley, California in the United States in 1986 and in Aptos, California in the United States from 1987 to 1988. The tournament was played on outdoor hard courts.
| Year | Champions | Runners-up | Score | |
|---|---|---|---|---|
| 1986 | 6–1, 6–3 | |||
| 1987 | 6–3, 6–4 | |||
| 1988 | 6–4, 7–5 |
| Year | Champions | Runners-up | Score | |
|---|---|---|---|---|
| 1986 | 6–1, 6–2 | |||
| 1987 | 6–1, 6–0 | |||
| 1988 | 6–3, 6–4 |