Washington is a village in St. Landry Parish, Louisiana, United States. The population was 742 at the 2020 census. It is part of the Opelousas–Eunice Micropolitan Statistical Area. Washington was the largest inland port between New Orleans and St. Louis for much of the 19th century.

St. Landry Parish is a parish located in the U.S. state of Louisiana. As of the 2020 Census, the population was 82,540. The parish seat is Opelousas. The parish was established in 1807.