Gerald Fitzmaurice Colin (1913–1995) was the fourth Bishop of Grimsby in the Church of England.
Educated at Mountjoy School and Trinity College, Dublin,[1] Colin was ordained in 1937. His first post was at St George's, Dublin,[2] and after wartime service in the Royal Air Force Volunteer Reserve he became vicar of St Lawrence's, Frodingham.[3] From 1966 he was for 13 years one of the Bishop of Lincoln's two suffragan bishops, the other being the Bishop of Grantham. He was a proctor in the Convocation of the Church of England from 1960 to 1970. Until his death he continued to serve as an assistant bishop in the Diocese of Lincoln.