Lydd, town (parish), Shepway district, administrative and historic county of Kent, southeastern England. Nearby is the complex shingle (gravel) spit of Dungeness, on the coast of the English Channel.
Until the 14th century the town was on an island and was a member of the Cinque Ports, but it now lies 3 miles (5 km) from the sea. Its parish church includes Saxon work and has a tower that is a widely known landmark. Nearby Ferryfield Airport has car ferry services to the European mainland. Two nuclear power stations were built on the Dungeness promontory; the first began generating power in the mid-1960s and ceased operating in 2006, and generation from the second started in the mid-1980s.. Pop. (2001) 5,782; (2011) 6,567.