The Australian Catholic Church or Catholic Church in Australia is part of the worldwide Catholic Church under the spiritual and administrative leadership of the Holy See. From origins as a suppressed, mainly Irish minority in early colonial times, the church has grown to be the largest Christian denomination in Australia, with a culturally diverse membership of around 5,075,907 people, representing about 20% of the overall population of Australia according to the 2021 ABS Census data.
The Roman Catholic Archdiocese of Melbourne is a Latin Rite metropolitan archdiocese in Melbourne, Victoria, Australia. Erected initially in 1847 as the Diocese of Melbourne, a suffragan diocese of Archdiocese of Sydney, the diocese was elevated in 1874 as an archdiocese of the Ecclesiastical Province of Melbourne and is the metropolitan for the suffragan dioceses of Sale, Sandhurst, Ballarat, and the Ukrainian Catholic Eparchy of Ss Peter and Paul. The Archdiocese of Hobart is attached to the archdiocese for administrative purposes. St Patrick's Cathedral is the seat of the Archbishop of Melbourne, currently Peter Comensoli, who succeeded Denis Hart on 1 August 2018.
The Diocese of Sandhurst is a Latin Church ecclesiastical jurisdiction or diocese of the Catholic Church in Australia. It is a suffragan in the ecclesiastical province of the metropolitan Archdiocese of Melbourne. The Diocese of Sandhurst was erected in 1874 and covers the central and north-east regions of Victoria, including Bendigo.
The Archdiocese of Hobart is a Latin Church ecclesiastical territory or archdiocese of the Catholic Church in Australia located in Hobart and covering Tasmania, Australia.
The Diocese of Broken Bay is a Latin Church ecclesiastical jurisdiction or diocese the Catholic Church in Australia. It is a suffragan in the ecclesiastical province of the metropolitan Archdiocese of Sydney.
The Roman Catholic Archdiocese of Adelaide is a Latin Church metropolitan archdiocese of the Catholic Church in Australia located in Adelaide, South Australia.
The Diocese of Port Pirie is a Latin Church ecclesiastical jurisdiction or diocese of the Catholic Church in Australia. It is a suffragan in the ecclesiastical province of the metropolitan Archdiocese of Adelaide, erected in 1887 covering the Yorke and Eyre Peninsulas, Flinders Ranges, Nullarbor Plain, and Mid and Far North regions of South Australia, Australia.
The Archdiocese of Sydney is a Latin Church ecclesiastical territory or archdiocese of the Catholic Church. Its episcopal see is Sydney, New South Wales, Australia.
The Diocese of Wilcannia–Forbes is a Latin Church ecclesiastical jurisdiction or diocese of the Catholic Church in Australia. It is a suffragan in the ecclesiastical province of the metropolitan Archdiocese of Sydney. The Diocese of Wilcannia–Forbes was established in 1887, initially as the Diocese of Wilcannia. The diocese adopted its current name in 1917 when six parochial districts of Diocese of Bathurst, including those of Parkes and Forbes, were added to its western neighbour. The diocese covers the Far West region of New South Wales in Australia. The Bishop's office is in Forbes but his seat is in Sacred Heart Cathedral, Broken Hill.
The Metropolitan Archdiocese of Perth is a Latin Church metropolitan archdiocese of the Catholic Church in Australia covering the Greater Perth, Goldfields-Esperance, Peel and Wheatbelt regions of Western Australia.
The Archdiocese of Brisbane is a Latin Church metropolitan archdiocese of the Catholic Church in Australia located in Brisbane and covering the South East region of Queensland, Australia.
The Roman Catholic Diocese of Cairns is located in the state of Queensland, Australia. It is a suffragan diocese of the Archdiocese of Brisbane. The diocese was erected as a vicariate apostolic in 1877 and was elevated to a diocese in 1941. Its territorial remit is Far North Queensland.
The Diocese of Armidale is a Latin Church ecclesiastical jurisdiction or diocese of the Catholic Church in Australia. It is a suffragan in the ecclesiastical province of the metropolitan Archdiocese of Sydney. The Diocese of Armidale was established in 1869 and covers the New England and Barwon River regions of New South Wales.
The Roman Catholic Diocese of Parramatta is a suffragan Latin Church diocese of the Archdiocese of Sydney, established in 1986.
The Diocese of Wollongong is a Latin Church ecclesiastical jurisdiction or diocese of the Catholic Church in Australia. Established in 1951, the diocese covers the Illawarra and Southern Highlands regions of New South Wales. It is a suffragan in the ecclesiastical province of the metropolitan Archdiocese of Sydney
The Roman Catholic Diocese of Christchurch is a suffragan diocese of the Archdiocese of Wellington. Its cathedral and see city are located in Christchurch, the largest city in the South Island of New Zealand. It was formed on 5 May 1887 from a portion of the territory of the Diocese of Wellington, which was elevated to archdiocese later that same month.
Jeremiah Joseph Doyle, was an Irish born Catholic bishop, the bishop of Grafton, later re-named the diocese of Lismore in New South Wales, Australia. One of his achievements was lobbying for, and acquiring funds for, the building of St Carthage's Cathedral at Lismore, which was constructed over the period 1892–1907, with the bell tower completed a few years later, after his death.
Gregory Homeming OCD is the Bishop of the Roman Catholic Diocese of Lismore. His installation took place on 22 February 2017.
Geoffrey Hylton Jarrett is a retired Australian Roman Catholic bishop who served as bishop of the Roman Catholic Diocese of Lismore.
St Carthage's Cathedral, Lismore is the cathedral church of the Roman Catholic Diocese of Lismore and the seat of the Bishop of Lismore, New South Wales, currently the Most Reverend Greg Homeming OCD.
Australia 
519,640
20.7%)
