St. Patrick's High School was a non-denominational school centrally located on Quinpool Road in Halifax, Nova Scotia, Canada. Historically a Roman Catholic public school, St. Pat's opened in 1954 less than one block from its rival non-denominational public school, Queen Elizabeth High (QEH). St. Patrick's closed in 2007, merging with QEH to form Citadel High School. The school building was demolished in 2015.