Ettersburg (also, Etter) is a locality in Humboldt County, California. It is located 12.5 miles (20 km) west-northwest of Phillipsville, at an elevation of 676 feet (206 m).
A post office operated at Ettersburg from 1902 to 1906 and from 1915 to 1965. The name comes from the ancestral home of homesteader Albert F. Etter.
Coordinates: 40°08′19″N 123°59′50″W / 40.13861°N 123.99722°W