The Diocese of Parramatta is a suffragan Latin Church diocese of the Archdiocese of Sydney, established in 1986.

Quick Facts Diocese of Parramatta Dioecesis Parramattensis, Location ...

Diocese of Parramatta Dioecesis Parramattensis
St Patrick's Cathedral, Parramatta; consecrated in 1837; devastated by fire in 1996; rededicated in 2003
Location
Country	Australia
Territory	Western suburbs of Sydney, New South Wales and Blue Mountains
Metropolitan	Archdiocese of Sydney
Coordinates	33°48′29″S 151°00′16″E
Statistics
Area	4,289 km2 (1,656 sq mi)
Population - Total - Catholics	(as of 2004) 924,621 330,000 ( 33.2%)
Parishes	47
Information
Denomination	Roman Catholic
Sui iuris church	Latin Church
Rite	Roman Rite
Established	8 April 1986
Cathedral	St Patrick's Cathedral
Current leadership
Pope	Francis
Bishop	Vincent Long Van Nguyen OFM Conv
Metropolitan Archbishop	Anthony Fisher OP
Bishops emeritus	Kevin Michael Manning
Map
Website
parracatholic.org

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The Diocese of Parramatta is an organisation of the Roman Catholic Church, with responsibility for the western suburbs of Sydney and the Blue Mountains, in New South Wales, Australia.

St Patrick's Cathedral, Parramatta, is the seat of the Catholic Bishop of Parramatta. On 5 May 2016, Pope Francis appointed Vincent Long Van Nguyen OFM Conv to be its fourth bishop.^[1] His installation took place on 16 June 2016.

The diocese is located in one of the fastest-growing areas of New South Wales. The diocese is west of Sydney and reaches from Dundas Valley, west to Katoomba, south to Luddenham and north to Richmond. The diocese was established 8 April 1986 from the western part of the Archdiocese of Sydney.^[2] and by 2004 served 307,392 parishioners out of a total population of 924,621.^{[citation needed]}

With origins of the first Mass occurring on the present day site of the cathedral going back to 1803, St Patrick's was extensively rebuilt after a 1996 fire devastated the original church established in 1854. A tower was built on the original St Patrick's Church, which was consecrated in 1880 and blessed in 1883. A cast bronze bell was installed in the tower in 1904. As the needs of the parish grew, a new church was built on the site in 1936, incorporating the existing tower and spire. When the Diocese of Parramatta was established in 1986, St Patrick's Church was designated as St Patrick's Cathedral. The fire of 1996 completely devastated the cathedral, leaving only the bell tower and sandstone walls. A completely new cathedral was rebuilt adjacent to the historic fire ravaged site. Designed in consultation with Romaldo Giurgola, the new cathedral, completed in 2003, has won the Sir Zelman Cowen Award for Public Buildings from the Australian Institute of Architects.^[4][5][6][7]

There are 47 parishes and one parochial district located in Diocese of Parramatta within five deaneries.^[8]

• Roman Catholicism in Australia
• Catholic education in the Diocese of Parramatta
• St Andrew's Parish