Longguan, formerly known as Longmen, is a town in Chicheng County in northwestern Hebei Province, China, situated along China National Highway 112 around east of downtown Zhangjiakou and southwest of the county seat as the crow flies. , it has 35 villages under its administration.
Under the name Longmen, the town was formerly the seat of a county under the administration of Xuanhua Prefecture during imperial times.