Oak Bluffs is a town on Martha's Vineyard in Massachusetts. The population was 5,341 at the 2020 United States census. The town contains the census-designated place of the same name. It is one of the island's principal points of arrival for summer tourists, and is noted for its "gingerbread cottages" and other well-preserved mid- to late-nineteenth-century buildings. The town has been a historically important center of African American culture since the 18th century.