Reverend Campbell Stephen (1884 – 25 October 1947) was a Scottish socialist politician. A native of Glasgow, he was educated at Townhead Public School, Allan Glen's School and Glasgow University. He worked first as United Free Church Minister and then as a barrister. He resigned his charge at the United Free Church in Ardrossan, Ayrshire in 1918 to contest Ayr Burghs in the same year. He was Independent Labour Party Member of Parliament (MP) for Glasgow Camlachie from November 1922 to 1931 and from 1935 until his death.