The Archdiocese of Hobart (Latin: Archidioecesis Hobartensis) is a Roman Catholic Diocese in Tasmania, Australia, covering the entire State. The archdiocese is an immediately subject to the Holy See. The Archbishop since 1999 is Adrian Leo Doyle.
On 5 April 1842, the Vicariate Apostolic of Hobart was erected. It was elevated to a diocese on 22 April 1842 and became an archdiocese on 3 August 1888.