The Cardinal Gibbons School, also referred to as Cardinal Gibbons, CG, and most commonly as Gibbons, was a Roman Catholic high school and middle school for boys in Baltimore, Maryland, USA. A private institution for grades 6–12, Gibbons drew its enrollment from the neighborhoods of southwest Baltimore City and the counties surrounding the Baltimore metropolitan area, with some as far away as Harford County, Carroll County, and Frederick County.

The Metropolitan Archdiocese of Baltimore is the archdiocese of the Latin Church of the Catholic Church in northern and Western Maryland in the United States. It is the metropolitan see of the Ecclesiastical Province of Baltimore.