Ermysted's Grammar School is an 11-18 boys voluntary aided grammar school in Skipton, North Yorkshire, England. It was founded by Peter Toller in the 15th century and is the seventh oldest state school in Britain. The first official record of the school was seen in Peter Toller's will in 1492; the school records its establishment as the same year. The school operates a house system. The four houses—Toller, Ermysted, Petyt, and Hartley—are named after key figures in the school's history. When the school operated a boarding house, its boarders were members of School House.