Westport is a city in Grays Harbor County, Washington, United States. It had a population of 2,213 at the 2020 census. Westport is located on a peninsula on the south side of the entrance to Grays Harbor from the Pacific Ocean. The public Westport Marina is the largest marina on the outer coast of the United States's Pacific Northwest. The marina is home to a large commercial fishing fleet and several recreational charter fishing vessels.