London Buses route 133 is a Transport for London contracted bus route in London, England. Running between Streatham station and Holborn station, it is operated by Arriva London.
History
Route 133 commenced operating on 27 March 1929 from South Croydon to Liverpool Street station. On 24 July 1971, the route was withdrawn between Croydon and Streatham with one man operation introduced with Daimler Fleetlines.
Upon being put out to tender, it was taken over by London General's Stockwell Garage on 6 January 1990 with Northern Counties bodied Volvo Citybuses. Upon being re-tendered, route 133 was taken over by Arriva London's Norwood garage on 22 January 2010. When next tendered, it was retained by Arriva London, with it transferred to Brixton garage on 21 January 2017.
On 23 November 2022, it was announced that route 133 would be rerouted to run to Holborn instead of Liverpool Street following a consultation. This change was implemented on 29 April 2023.