The Trolleybus Athens system is an electric public transportation network that operates in the city of Athens, Greece. It uses trolleybuses, which are buses powered by electricity from overhead wires, providing a cleaner alternative to traditional diesel buses. The system is an essential part of the city's public transport, connecting various neighborhoods and facilitating easy travel for residents and visitors. Established in the mid-20th century, the Trolleybus Athens network has expanded over the years to include numerous routes. It complements other forms of public transport, such as the Athens Metro and tram, ensuring efficient mobility across the city. The trolleybuses are known for their reliability and contribute to reducing urban air pollution.