Charles Robert Maturin, also known as C. R. Maturin (25 September 1780 - 30 October 1824), was an Irish Protestant clergyman, ordained in the Church of Ireland, and a writer of Gothic plays and novels. Born in Dublin, he published his early novels, including The Fatal Revenge (1807), under a pseudonym before his tragedy Bertram (1816) was staged at Drury Lane with Edmund Kean in the lead.

His best-known work is Melmoth the Wanderer (1820), the story of a man who sold his soul for an extended life and searches for someone to take his place. It influenced writers including Balzac, Baudelaire and Poe, and is regarded as one of the high points of Gothic fiction. His last novel, The Albigenses (1824), features werewolves. His literary work limited his advancement in the Church, and he was a great-uncle of Oscar Wilde.