Northfleet is a town in the borough of Gravesham in Kent, England. It is located immediately west of Gravesend, and on the border with the Borough of Dartford. Northfleet has its own railway station on the North Kent Line, just east of Ebbsfleet International railway station on the High Speed 1 line. According to the 2021 census, Northfleet has a population of 29,900.

Gravesham is a local government district with borough status in north-west Kent, England. The council is based in its largest town of Gravesend. The borough is indirectly named after Gravesend, using the form of the town's name as it appeared in the Domesday Book of 1086. The district also contains Northfleet and a number of villages and surrounding rural areas.