Sandymount High School was a coeducational secondary school on Herbert Road, Sandymount, Dublin 4. Founded in 1947, it was initially controversial because, as a non-denominational school, it wasn't owned by a church but by the Cannon family, who also provided the two headmasters the school had: father and son Patrick and Conall Cannon. Patrick's wife Eileen Cannon also served as headmistress. The school's student body was arguably drawn from several distinct groups: The school was closed in 1999 and the land sold for development. The site now contains a gated community called Cannon Place.