Bishop McGuinness Catholic High School (McGuinness) is a college-preparatory secondary school located in Oklahoma City, Oklahoma, United States. It has an enrollment of 720 students in grades 9 through 12, is co-educational, and serves as part of the Archdiocese of Oklahoma City in the Roman Catholic Church.

The Archdiocese of Oklahoma City is a Latin Church ecclesiastical territory or archdiocese of the Catholic Church of western Oklahoma in the United States. The mother church of the archdiocese is the Cathedral of Our Lady of Perpetual Help in Oklahoma City.