Lake Shastina is an unincorporated community and census-designated place (CDP) in Siskiyou County, California, United States.

It is a residential community sited on the east side of the lake of the same name.

The community of Lake Shastina is 9 miles (14 km) north of Weed.

Lake Shastina first appeared as a census designated place in the 2020 U.S.

This Siskiyou County, California-related article is a stub.