Arthur Cecil Caporn (16 April 1884 – 25 November 1953) was a British judge and Conservative Party politician. Born in Radcliffe-on-Trent, Nottinghamshire, he was the son of Arthur Leeson Caporn, owner of a Nottingham lace-making business. His father also had business interests in South Africa, and the family spent some years in the Cape Town area. He was educated at South African College School and Trinity Hall, Cambridge. He took a second in the Law Tripos in 1905. He was called to the bar at the Middle Temple in 1907, and practised as a barrister in Sheffield. He also lectured in common law at the University of Sheffield.