John Clarke Davison (19 April 1875 – 19 February 1946) was a barrister and Unionist politician in Northern Ireland. Davison was educated at Coleraine Academical Institution and Trinity College, Dublin and was called to the Irish Bar in 1898. He was a legal adviser to the Government of Northern Ireland from 1922–1925, and Senior Crown Prosecutor for County Louth and County Antrim. In 1925, he was elected in a by-election as a Unionist to the Parliament of Northern Ireland from County Armagh, and then from 1929 from Mid-Armagh until resigning his seat shortly after the 1938 general election upon appointment as Recorder of Londonderry.