Lydd is a town and electoral ward in Kent, England, lying on the Romney Marsh. It is one of the larger villages on the marsh, and the most southerly village in Kent. Lydd reached the height of its prosperity during the 13th century, when it was a corporate member of the Cinque Ports, a "limb" of Romney. Actually located on Denge Marsh, Lydd was one of the first sandy islands to form as the bay evolved into what is now called the Romney Marsh. The name Hlyda, which derives from the Latin word for "shore", was found in a Saxon charter dating from the 8th century.