Lake Sherwood is an unincorporated community in the Santa Monica Mountains, in Ventura County, California overlooking Lake Sherwood reservoir. It is south of the Conejo Valley and city of Thousand Oaks, and west of Westlake Village.

While homes have been around the lake since the reservoir was created, the community expanded with the construction of the Sherwood Country Club golf course surrounded by luxury homes.

The ZIP Code is 91361, and the community is inside area code 805. The population was 1,527 at the 2010 census. For statistical purposes, the United States Census Bureau has defined Lake Sherwood as a census-designated place (CDP). The census definition of the area may not precisely correspond to local understanding of the area with the same name.