Alfred Morris Gelsthorpe, DSO (26 February 1892 – 22 August 1968) was an English Anglican bishop and missionary.

[4] In September 1914, not long after the outbreak of the First World War, Gelsthorpe, who had been an active member of the Durham University Officers' Training Corps in his time as a student, enlisted initially as a regular soldier in the Artists Rifles, but then received a commission the following month and transferred to the 8th battalion of the Durham Light Infantry as second lieutenant.

[5] He received the Distinguished Service Order on attachment to the Machine Gun Corps and was twice mentioned in despatches.

[5] He was made a deacon in the Church of England in 1919, and was ordained as a priest in by the new Bishop of Durham, Hensley Henson, in 1920.

[5] In 1949 he married Dr Elfrida Whidborne of the Church Missionary Society Hospital in Omdurman.