Lewis School, Pengam is a comprehensive school, founded in 1729 in the parish and village of Gelligaer and, later, moved to the nearby village of Gilfach, in the Rhymney Valley in South Wales. It was founded and funded by a legacy of Sir Edward Lewis of Gilfach Fargoed in the Parish of Gelligaer, a knight, landowner and captain of industry who died in 1728. It became comprehensive during the 1970s.