John Duncombe (29 September 1729 – 19 January 1786) was an English clergyman and writer. He studied at Corpus Christi College, Cambridge, where he became a fellow. He contributed to the Gentleman's Magazine under the pseudonym Crito, was a well-known poet, and wrote in 1754 a celebration of British women poets, The Feminead. He was married to the poet Susanna Duncombe (née Highmore).