Diocese of Adelaide

The Diocese of Adelaide, Archiocese of Adelaide, Bishop of Adelaide and Archbishop of Adelaide could refer to:
 * The Anglican Diocese of Adelaide, led by the Anglican Bishop of Adelaide (1847–1970)
 * The Anglican Archdiocese of Adelaide, led by the Anglican Archbishop of Adelaide (1970–present)
 * The Roman Catholic Diocese of Adelaide, led by the Roman Catholic Bishop of Adelaide (1843–1887)
 * The Roman Catholic Archdiocese of Adelaide, led by the Roman Catholic Archbishop of Adelaide (1887–present)