The Archdiocese of Miami is a Latin Church archdiocese of the Catholic Church in South Florida in the United States. It is the metropolitan see for the Ecclesiastical Province of Miami, which covers all of Florida.

The Cathedral of Saint Mary is the seat of the archbishop of the Roman Catholic Archdiocese of Miami. The cathedral is named for Mary, mother of Jesus, and is located at 7525 N.W. 2nd Avenue, Miami, Florida, United States. Since June 2010, Archbishop Thomas Gerard Wenski has served as the archbishop of Miami, Rev. Christopher Marino is the cathedral's rector.