| Nike Sonoma County Open | |
| Location: | Windsor, California |
| Establishment: | 1990 |
| Course: | Windsor Golf Course |
| Par: | 72 |
| Tour: | Nike Tour |
| Format: | Stroke play |
| Month Played: | September/October |
| Final Year: | 1995 |
| Aggregate: | 269 Stuart Appleby (1995) |
| To-Par: | −19 as above |
| Final Champion: |  Stuart Appleby |
| Map: | USA#USA California |
| Map Label: | Windsor GC |
| Map Relief: | yes |
| Map Size: | 200 |
| Coordinates: | 38.528°N -122.805°W |
The Sonoma County Open was a golf tournament on the Nike Tour. It ran from 1990 to 1995. It was played at Windsor Golf Course in Windsor, California.
In 1995 the winner earned $36,000.[1]
| Year | Winner | Score | To par | Margin of victory | Runner(s)-up | |
|---|---|---|---|---|---|---|
| Nike Sonoma County Open | ||||||
| 269 | −19 | 4 strokes |  Bobby Collins Joe Durant Jerry Kelly | |||
| 277 | −11 | 2 strokes | Woody Austin | |||
| 274 | −14 | 1 stroke | Joey Rassett | |||
| Ben Hogan Sonoma County Open | ||||||
| 199 | −17 | 3 strokes | Mark Wurtz | |||
| Ben Hogan Santa Rosa Open | ||||||
| 207 | −9 | 1 stroke | Mike Foster Brad Greer Webb Heintzelman Jeff Woodland | |||
| 204 | −12 | 3 strokes | John Flannery | |||