The Greenford Branch Line is a 2 3⁄4 miles (4.4 km) Network Rail suburban railway line in west London, England. It runs northerly from a triangular junction with the Great Western Main Line west of West Ealing to a central bay platform at Greenford station which is also on the London Underground Central line. A triangular junction near Greenford connects to the Acton-Northolt Line (formerly the New North Main Line). The line serves mainly the suburbs of Ealing and Greenford.