List of town tramway systems in the United Kingdom

This is a list of town tramway systems in the United Kingdom divided by constituent country and by regions of England. It includes all tram systems, past and present. Most of the tram systems operated on (SG) or  track, although there were a small number of other gauges used. Where known, the track gauge is indicated in the 'Notes' column.

Most of these systems have closed, but a list of the remaining systems can be found at List of modern tramway and light rail systems in the United Kingdom. At the peak of Britain’s first-generation tramways, it was possible to travel by tram all the way from Pier Head at Liverpool to the Pennines in Rochdale by tram.

Greater London
Note: Horse tramways existed as several unconnected systems north of the Thames, a system (owned and operated by several undertakings) south of the River Thames, and two unconnected systems at Croydon.

Electric tramways – Inner London
Note: The LCC tramway system was assembled from predecessors including fourteen municipal and three company undertakings. Tramways were not built in the City of London and the West End of London because of local opposition. The South London system had segments north of the Thames, notably the Victoria Embankment. However, this system was not connected to the North London system until construction of the Kingsway tramway subway. Reintroduction planned: (Cross River Tram scheme), Camden Town / Kings Cross–Euston–Waterloo–Brixton / Peckham.

Northern Ireland
Note for Giant's Causeway Tramway: Portrush–Bushmills opened 29 January 1883. Bushmills–Giant's Causeway opened 1 July 1887. World's first use of electric traction with hydroelectric generation. Track built in street in Portrush.

Crown dependencies

 * List of town tramway systems in Europe – Isle of Man