St Peter's Cathedral is an Anglican cathedral with heritage-listed building and grounds at 122 Rusden Street, Armidale, Armidale Regional Council, New South Wales, Australia. It is the mother church of the Anglican Diocese of Armidale. and the seat of the Anglican Bishop of Armidale. The cathedral was designed by John Horbury Hunt and Bishop James Francis Turner and built from 1871 to 1938. It is also known as the Anglican Cathedral Church of St Peter Apostle and Martyr. It was added to the New South Wales State Heritage Register on 12 March 2014.