Rowland Ellis (24 April 1841 – 11 December 1911) was a Welsh bishop who held the post of Bishop of Aberdeen and Orkney in the Scottish Episcopal Church from 1906 until his death.
Ellis was born in Caerwys, Flintshire, Wales and was educated at Ruthin School before graduating from Jesus College, Oxford with a BA degree in 1863. After being ordained, he held various church positions in Wales: curate of Gresford (1864–68), vicar of Gwersyllt (1868–72) and vicar of Mold 1872–84 (also Rural Dean of Mold from 1873 to 1884). He was a friend of William Ewart Gladstone, who lived nearby in Hawarden. He became rector of St Paul's Church in Edinburgh in 1884, becoming Bishop of Aberdeen and Orkney in 1906.
He wrote a number of theological works and was regarded as a strong opponent of disestablishment of the Church in Wales. He died at Delgatie Castle, Turriff, Aberdeenshire.