John Douse Langley (17 May 1836 – 8 November 1930) was the second Bishop of Bendigo from 1907 to 1920. Born in Ballyduff, County Waterford on 17 May 1836 he was educated at Trinity College, Dublin, and at Moore College in New South Wales. He came to Australia with his family in 1853, and after an earlier career with the Bank of Australasia was ordained in 1873. He held incumbencies in Berrima and Sydney before becoming Archdeacon of Cumberland in 1895 and a Canon of St Andrew's Cathedral, Sydney in 1902.