This is a list of cities with trolleybuses as part of public transport system.
- Argentina
- Cordoba
- Mendoza
- Rosario
- Armenia
- Gumri
- Yerevan
- Austria
- Azerbaijan
- Baku
- Gyandzha
- Nakhichevan
- Sumqayyt
- Belarus
- Belgium
- Bosnia-Herzegovina
- Brazil
- Bulgaria
- Canada
- Chile
- China
- Czech Republic
- Brno
- Ceske Budejovice
- Chomutov - Jirkov
- Hradec Kralove
- Jihlava
- Liberec
- Marianski Lazne
- Opava
- Ostrava
- Pardubice
- Plzen
- Teplice
- Usti nad Labem
- Zlín
- Ecuador
- Quito (called trole, is fairly new)
- Quito (called trole, is fairly new)
- Estonia
- France
- Georgia
- Germany
- Greece
- Hungary
- Italy
- Rome ?
- Rome ?
- Lithuania
- Mexico
- The Netherlands
- New Zealand
- North Korea
- Chongjin
- Hamhung
- Kanggye
- Pyongsong
- Pyongyang
- Norway
- Poland
- Romania
- Russia
- Serbia
- Sweden
- Switzerland
- Basel (there are plans of withdrawal)
- Bern
- Biel/Bienne
- Fribourg
- Geneva
- La Chaux-de-Fonds
- Lausanne
- Lucerne
- Neuchâtel
- Schaffhausen
- St. Gallen
- Vevey-Montreux-Villeneuve
- Winterthur
- Zürich
- Ukraine
- United States