The "Cranken Rhyme" is a Cornish-language song known by farmer John Davey (1812–1891), who was one of the last people with some knowledge of the tongue. It was first published by Celticist John Hobson Matthews in his History of St. Ives, Lelant, Towednack, and Zennor, and is probably the latest known work of oral poetry in Cornish to be collected after the official language death.