List of bus routes in London

This article is a list of Transport for London (TfL) contracted London Buses routes in London, England. It does not include commercially operated services that enter Greater London.

Historical classification
Historically, bus routes run by London Transport were grouped by the type of service they provided.

500-599
The 500 series numbers were originally allocated to Red Arrow services.

600-699
Many of these routes are run for schools to reduce overcrowding on regular bus services. Their timetables are subject to short notice alteration and re-routing in accordance with school requirements.