Frederic Sumpter Guy Warman (5 November 1872 – 12 February 1953) was an Anglican bishop who held three separate episcopal appointments between 1919 and 1947. He was educated at Merchant Taylors' and Pembroke College, Oxford and ordained priest in 1896. After a Curacy at Leyton (1895–99) and Hastings (1899–1901), he was Vice Principal of St Aidan's College, Birkenhead. He was Vicar of Birkenhead from 1902 to 1907; Principal of St Aidan's College, Birkenhead from 1907 to 1916 and Vicar of Bradford from 1916 to 1919. He was elevated to the Episcopate in 1919. After four years in Cornwall as Bishop of Truro he was translated to Chelmsford in 1923 and six years later to Manchester.