Kingisepp ( or ; ), formerly Yamburg , Yam , and Yama , is an ancient town and the administrative center of Kingiseppsky District of Leningrad Oblast, Russia, located along the Luga River  southwest of St. Petersburg, east of Narva, and south of the Gulf of Finland. Population:

The town was first documented in 1384, when the Novgorodians under Patrikas built there a fortress against the Swedes. It was called Yama or Yamsky Gorodok, after the Ingrian (ethnic Finnic group) name Jaama. The environs of the town are still cited as the main location of speakers of the nearly extinct Ingrian language. The citadel withstood sieges by the Swedes in 1395 and by the Teutonic Knights during the 1444–1448 war.