Dagenham Dock is a National Rail station in the Dagenham Dock neighbourhood of Dagenham in the London Borough of Barking and Dagenham, east London. The station is on the Tilbury loop of the London, Tilbury and Southend line, located 10 miles 45 chains (17.0 km) down the line from London Fenchurch Street between Barking to the west and Rainham to the east. The station was opened in 1908 by the London, Tilbury and Southend Railway. The station serves a primarily industrial area adjacent to the River Thames, including the Ford Dagenham site, that is now going through redevelopment as a commercial and residential district. Its three-letter station code is DDK and it is in London fare zone 5. The station and all trains serving it are currently operated by c2c. It is an interchange with the East London Transit bus service.

Dagenham is a town in East London, England, within the London Borough of Barking and Dagenham. Dagenham is centred 11.5 miles (18.5 km) east of Charing Cross.