The Anglican Diocese of Willochra is a diocese of the Anglican Church of Australia located in the state of South Australia, of which it covers over 90%, mainly in northern and western South Australia. The diocese is made up of thirteen parishes and five ministry districts comprising 80 small congregations. It was created from the Diocese of Adelaide in 1915.
The current Bishop of Willochra, the Right Reverend John Stead, who was enthroned on 30 June 2012, is the seventh bishop of the diocese.
The cathedral church of the diocese is the Cathedral of Ss Peter and Paul in Port Pirie. The cathedral building was built in 1899 as a parish church and was consecrated as cathedral on 29 June 1999.
The building is constructed of dressed stone and corrugated iron roof and is furnished internally in minimalist but slightly high church style.
33°16′04″S 138°21′25″E / 33.267785°S 138.356944°ECoordinates: 33°16′04″S 138°21′25″E / 33.267785°S 138.356944°E