Fairhaven High School and Academy is a historic school at 12 Huttleston Avenue in Fairhaven, Massachusetts. The school's main building, built in 1905, is also known as the "Castle on the Hill". The school was voted the "most beautiful high school in Massachusetts" in 2017.
The school building was added to the National Register of Historic Places in 1981. The building was donated in 1906 by Henry Huttleston Rogers, who was one of the key men in John D. Rockefeller's Standard Oil Trust.
The sports teams at the school are nicknamed the "Blue Devils" and the School colors are blue and white.