The Anglican Diocese of Perth is one of the 23 dioceses of the Anglican Church of Australia. The constitution of the Diocese of Perth was passed and adopted in 1872 at the first synod held in Western Australia. In 1914, the Province of Western Australia was created and the diocesan bishop of Perth became ex officio metropolitan bishop of the new province and therefore also an archbishop. The diocese incorporates the southern part of the state of Western Australia and includes the Christmas and Cocos Islands. The other dioceses in the Anglican Province of Western Australia are the Diocese of Bunbury and the Diocese of North West Australia.
The diocese has traditionally had a variety of churchmanship and in recent years has largely moved toward a more liberal and moderate Catholic style. There are, however, parishes and clergy representative of all the main Anglican traditions. On 10 February 2018, Kay Goldsworthy became the first female archbishop in the Anglican Communion on her installation to the archdiocese.
The Perth diocese, like all Australian dioceses, has had administrative procedures dealt with by the diocesan trustees. A range of other sub-committees of the diocese handle broader issues. The trustees were known in earlier times as the Trustees of Church Property.
The relationship of the church and government is not just from the proximity of the cathedral to government house. The land ownership and provision of favourable conditions for the diocese has occurred since establishment of the colony. The Diocesan Trustees and Diocesan Council are regularly observed to deal with significant land and building projects in the history of Perth.