The Warsaw tram network is a 125.3-kilometer (77.9 mi) tram system serving a third of Warsaw, Poland, and serving half the city's population. It operates 726 cars, and is the second-largest system in the country. There are about 25 regular lines, forming a part of the city's integrated public transport system organized by the Warsaw Transport Authority. Since 1994 the system is operated by the municipally-owned company Tramwaje Warszawskie sp. z.o.o.

Warsaw, officially the Capital City of Warsaw, is the capital and largest city of Poland. The metropolis stands on the River Vistula in east-central Poland. Its population is officially estimated at 1.86 million residents within a greater metropolitan area of 3.27 million residents, which makes Warsaw the 7th most-populous city in the European Union. The city area measures 517 km2 (200 sq mi) and comprises 18 districts, while the metropolitan area covers 6,100 km2 (2,355 sq mi). Warsaw is an alpha global city, a major cultural, political and economic hub, and the country's seat of government. It is also capital of the Masovian Voivodeship.