Wealdstone is a district located in the centre of the London Borough of Harrow, England. It is located just north of Harrow town centre and is south of Harrow Weald, west of Belmont and Kenton, and east of Headstone. The area accommodates most of Harrow's industrial and business designated land. Wealdstone was the location of the Kodak Harrow factory; it closed in 2016. Wealdstone is centred on the High Street, and much traffic is bypassed from here by the George Gange Way flyover built in 1996. Its western boundary is formed by Harrow View, across which Headstone Manor lies, whereas on the east is Byron Park and the Belmont Trail. Harrow & Wealdstone station and the council offices are located at its southern end.

The London Borough of Harrow is a London borough in northwest London, England; it forms part of Outer London. It borders four other London boroughs – Barnet to the east of ancient Watling Street, Brent to the southeast, Ealing to the south and Hillingdon to the west – plus the Hertfordshire districts of Three Rivers and Hertsmere to the north. The local authority is Harrow London Borough Council. The London borough was formed in 1965, based on boundaries that had been established in 1934. The borough is made up of three towns: Harrow, Pinner and Stanmore, but also includes western parts of Edgware.