Cleethorpes is a seaside town located on the estuary of the Humber in North East Lincolnshire, England. As of 2021, the town has a population of 29,670. It was formed by the unification of three small villages: Itterby, Oole, and Thrunscoe.
The area has been permanently occupied since the 6th century. While fishing served as its original industry, Cleethorpes developed into a resort during the 19th century.