| Washington Creek | |
|---|---|
 channelized section in dry season | |
  Location of the mouth in California | |
| Location | |
| Country | United States |
| State | California |
| Region | Sonoma County |
| City | Petaluma, California |
| Physical characteristics | |
| Source | Sonoma Mountain |
| • location | 7 mi (11 km) north of Petaluma, California |
| • coordinates | 38°19′19″N 122°35′3″W / 38.32194°N 122.58417°W |
| Mouth | Petaluma River |
• location | Petaluma, California |
• coordinates | 38°14′43″N 122°38′19″W / 38.24528°N 122.63861°W |
| Basin features | |
| Tributaries | |
| • left | East Washington Creek |
Washington Creek is a southward-flowing stream in Sonoma County, California, United States which enters the city of Petaluma and discharges to the Petaluma River.