John Caird FRSE (15 December 1820 - 30 July 1898) was a theologian. He entered the Church of Scotland, of which he became one of the most eloquent preachers. He served as the Principal of Glasgow University from 1873 until 1898. He was born in Greenock the son of John Caird of Caird and Co and Janet Young. His younger brother was Edward Caird. He was educated at Greenock Grammar School, and then attended Glasgow University (MA 1845). Caird delivered the 1892-1896 Gifford Lectures at the University of Glasgow, entitled The Fundamental Ideas of Christianity. In 1897 he was elected an Honorary Fellow of the Royal Society of Edinburgh. He died in Greenock and is buried in Greenock Cemetery.