Romford railway station is an interchange station on the Great Eastern Main Line, serving the town of Romford in the London Borough of Havering, east London. It is 12 miles 30 chains (19.9 km) down the line from London Liverpool Street and is situated between Chadwell Heath and Gidea Park. It is also the northern terminus of a branch line to Upminster operated by London Overground. Its three-letter station code is RMF and it is in Travelcard Zone 6.

The Great Eastern Main Line is a 114.5-mile (184.3 km) major railway line on the British railway system which connects Liverpool Street station in central London with destinations in east London and the East of England, including Shenfield, Chelmsford, Colchester, Ipswich and Norwich. Its numerous branches also connect the main line to Southminster, Braintree, Sudbury, Harwich and a number of coastal towns including Southend-on-Sea, Clacton-on-Sea, Walton-on-the-Naze and Lowestoft.