London Buses route 9

9
London United New Routemaster at Charing Cross station in December 2013
Overview
Operator	London United
Garage	Stamford Brook (V)
Vehicle	New Routemaster
Night-time	Night bus N9
Route
Start	Hammersmith bus station
Via	Kensington Hyde Park Corner Trafalgar Square
End	Aldwych

London Buses route 9 is a Transport for London contracted bus route in London, England. Running between Hammersmith bus station and Aldwych, it is operated by London United.

Route 9 has been called "London's oldest existing bus route". The origins of the route go as far back as 1856.

The Sunday 9 extension was finally removed when route 23 gained a Sunday service in the late 1960s, although a token service was maintained as far as Aldgate until 14:00 on Sundays to serve the local markets, the afternoon service being curtailed at Aldwych. The Saturday service was also curtailed to Aldwych a few years later, but the Sunday service was renumbered 9A to avoid the unusual bifurcation, being further diverted via Monument and Tower Hill instead of Bank and Leadenhall Street. This variation had been dropped completely by 1990, and the route thus then ran daily from Mortlake to Aldwych with a Monday to Friday extension to Liverpool Street. The whole route was cut back to Aldwych on 18 July 1992, the replacement to Liverpool Street being new route 23.

In the lead up to the introduction of the London congestion charge in February 2003, services levels were increased with MCW Metrobuses drafted in to supplement the AEC Routemasters. On 4 September 2004, crewed operation finished with the AEC Routemasters replaced by East Lancs Myllennium Vyking bodied Volvo B7TL and the route transferred to Stamford Brook garage, in an economy swap with route 49.