Silloth (sometimes known as Silloth-on-Solway) is a port town and civil parish in Cumbria, England. It sits on the shoreline of the Solway Firth, 22 miles (35 km) west of Carlisle. The town of Maryport lies 12 miles (19 km) miles to the south, down the B5300 coast road which also passes through the villages of Blitterlees, Beckfoot, Mawbray, and Allonby.