Oysterville is an unincorporated community located along Willapa Bay on the Long Beach Peninsula in Pacific County, Washington, United States. It is approximately 5 miles (8.0 km) from the city of Ocean Park, and 15 miles (24 km) from Long Beach. Founded in 1841 as an oyster fishing village, the community is registered on the National Register of Historic Places as the Oysterville Historic District. It currently has a population of about 20 residents.

Pacific County is a county in the U.S. state of Washington. As of the 2020 census, the population was 23,365. Its county seat is South Bend, and its largest city is Raymond. The county was formed by the government of Oregon Territory in February 1851 and is named for the Pacific Ocean.