Warsaw Public Transport Authority

The Public Transport Authority (Polish: Zarząd Transportu Miejskiego w Warszawie, ZTM) is a local government body organising public transport in Warsaw and surrounding metropolitan area. Services managed by the Authority are corporately branded as Warszawski Transport Publiczny (meaning 'Warsaw Public Transport'; abbreviated to WTP). These include: bus and tram networks, two metro lines, szybka kolej miejska trains and park-and-ride car parks.

The Authority is in charge of a unified fare system, timetable scheduling, route planning and public transport development plans. Transport operations themselves are performed by municipal and privately owned, contracted companies.