The following is a list of high-speed trains, limited to conventional wheeled trains, that have been, are, or will be in commercial service.
A high-speed train is one intended for regular operations at speeds of over 200 km/h (125 mph), with a high level of service, and generally comprising multi-powered elements. Standard locomotive-hauled trains, often able to reach 200 km/h, such as French Corail or German IC trains, unconventional trains, such as maglev and transrapid, and prototypes are excluded.
In these tables, two maximum speeds are given: the column "Operating speed" refers to the maximum speed reached by the train in commercial operations, while the column "Design speed" refers to the theoretical maximum speed in commercial operations as announced by the manufacturer.
^"Bullet train in milestone run on HS1". Railnews. 2008-06-10. Retrieved 2012-01-04. an earlier successful 'overspeed' test to check train stability and ride on 18th April, when the train achieved a maximum speed of 252 km/h