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 to 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.^[1] Davison was an opponent of the Irish language, considering it "political propaganda" and "disloyal". He called upon the government to ban the Irish language in schools.^[2]

He was Chairman of Ways and Means and Deputy Speaker of the House of Commons from March – June 1937 and Parliamentary Secretary to the Ministry of Home Affairs from 1937 – 1938. He died on 19 February 1946.^[1]