| Marshall | |
| Settlement Type: | Unincorporated community |
| Mapsize: | 225px |
| Pushpin Map: | California |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location within the state of California |
| Coordinates: | 38.1606°N -122.8942°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | California |
| Subdivision Type2: | County |
| Subdivision Name2: | Marin |
| Subdivision Type3: | Region |
| Subdivision Name3: | West Marin |
| Leader Title: | County Board |
| Leader Name: | District 4 Dennis Rodoni[1] |
| Leader Title1: | State Senator |
| Leader Name1: | [2] |
| Leader Title2: | Assemblymember |
| Leader Title3: | U. S. Rep. |
| Leader Name3: | [3] |
| Elevation Ft: | 23 |
| Population Total: | 400 |
| Timezone: | PST |
| Utc Offset: | -8 |
| Timezone Dst: | PDT |
| Utc Offset Dst: | -7 |
| Postal Code Type: | ZIP code |
| Postal Code: | 94940 |
| Area Code Type: | Area codes |
| Area Code: | 415/628 |
| Blank Name: | FIPS code |
| Blank Info: | 06-46058 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 228136 |
Marshall is an unincorporated community in Marin County, California. It is located on the northeast shore of Tomales Bay south of Tomales, at an elevation of .
Marshall is located on the east shore of Tomales Bay. It has a population that is unknown.[4] It is located approximately southeast of Bodega Bay, on State Route 1. Its ZIP code is 94940.
The town is named after the Marshalls, four brothers who set up a dairying industry there in the 1850s. Starting in the 1870s, Marshall was a stop on the North Pacific Coast Railroad connecting Cazadero to the Sausalito ferry.
There is still some dairying in the area with Straus Family Creamery based there, but nowadays the town's major commerce is in oysters and clams, for which it is a center. It also acts as a center for tourists visiting Tomales Bay and the neighboring Point Reyes Peninsula.