Harrow & Wealdstone is a London Underground and railway station on the Watford DC line and West Coast Main Line in Harrow and Wealdstone in the London Borough of Harrow. It is 11 miles 30 chains (18.31 km) on the line from London Euston station. It is also the northern terminus of the Bakerloo line and the next station towards south is Kenton.

The Bakerloo line is a London Underground line that runs from Harrow & Wealdstone in suburban north-west London to Elephant & Castle in south London, via the West End. Printed in brown on the Tube map, it serves 25 stations, 15 of which are underground, over 23.2 kilometres (14.4 mi). It runs partly on the surface and partly through deep-level tube tunnels.