List of tram and light rail transit systems

The following is a list of cities that have current tram/streetcar (including heritage trams/heritage streetcars), or light rail systems as part of their regular public transit systems. In other words, this list only includes systems which operate year-round and provide actual transit service, not ones that are primarily tourist services, are seasonal-only, or are excursion-type tram operations.
Some transit systems branded as "light rail" such as the Ampang Line and Kelana Jaya Line of Kuala Lumpur, Malaysia qualify as metro systems (see medium-capacity rail system) and thus are not listed here – see List of metro systems.
Only "currently operational" tram and LRT systems are included in this listing – tram and LRT systems that have "suspended operation" or are presently under construction are "excluded".
Asia.
All systems in Russia, including those in Asia, are listed together, for convenience, in the Europe section of this article.
Europe.
All systems in Turkey, including those in Europe, are listed together, for convenience, in the Asia section of this article.
North America.
The following systems provide regular transit service daily and year-round in North America. The bottom of the table lists those specific systems or lines using vintage or faux-vintage streetcars. For other heritage streetcar lines, ones with more limited service, see Streetcars in North America. North America, specifically more so the United States, once had extensive tram networks inn almost all cities, but almost all were removed for bus operations in the 40s and 50s. These systems are listed at List of streetcar systems in the United States.