The Frederick Gunn School is a private, coeducational, boarding and day prep school for students in grades 9-12 and post graduate, located in rural Connecticut, United States.[3] The 220-acre (0.89 km2) campus borders the village green of Washington, a small, historic town in Litchfield Hills. Formerly known as The Gunnery and Mr. Gunn's School, it was named for its founder, has no military affiliations and is a non-sectarian school.