Marske-by-the-Sea is a village in the unitary authority of Redcar and Cleveland and the ceremonial county of North Yorkshire, England. It is located on the coast, between the seaside resorts of Redcar and Saltburn-by-the-Sea, although it is not itself a seaside resort. Marske is in the civil parish of Saltburn, Marske and New Marske and comprises the wards of Longbeck (shared with New Marske) and St Germains.