Washington is a small town in St. Landry Parish, Louisiana, United States. The population was 1,082 at the 2000 census. It is part of the Opelousas–Eunice Micropolitan Statistical Area. First settled in 1720, it is the third oldest settlement in Louisiana (behind Natchitoches and New Orleans) and was the largest inland port between New Orleans and St. Louis for much of the 19th century.
Washington holds the annual Festival du Courtableau, now renamed the Washington Catfish Festival.