Mappleton is a village and civil parish in the East Riding of Yorkshire, England. It is situated on the North Sea coastline in an area known as Holderness, lying approximately 3 miles (5 km) south of the seaside resort of Hornsea. The civil parish is formed by the village of Mappleton and the hamlets of Cowden, Great Cowden and Rolston. According to the 2011 UK census, Mappleton parish had a population of 342, an increase on the 2001 UK census figure of 249.