The Roman Catholic Diocese of Wilcannia–Forbes is a suffragan Latin Rite diocese of the Archdiocese of Sydney, established in 1887, initially as the Diocese of Wilcannia (this town on the Darling River was then important due to the dominance of river transport), and then changed to the current name in 1917. At this time, six parochial districts of Bathurst Diocese, 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.