Trolleybuses in Biel/Bienne

The Biel/Bienne trolleybus system (Trolleybus System Biel; Réseau trolleybus de Bienne) is part of the public transport network of the bilingual city of Biel/Bienne, in the canton of Bern, Switzerland. The system also serves the neighbouring municipality of Nidau.

Opened on 19 October 1940, the system gradually replaced the Biel/Bienne tramway network.

Lines
The present system is made up of the following lines: