Aargau Verkehr AG (AVA) is a Swiss transport company. It was formed on 19 June 2018 from the merger of BDWM Transport and the Wynental and Suhrental Railway. The new company operates both rail and bus services, with most of the latter being provided through its wholly owned subsidiary Limmat Bus AG.

Whilst based in the canton of Aargau, the company also operates public transport services in the cantons of Zurich and Lucerne.

Aargau Verkehr formed on 19 June 2018 by the merger of BDWM Transport and the Wynental and Suhrental Railway. The meger led to the dissolving of the joint AAR bus+bahn brand that had previously united the Wynental and Suhrental Railway and the Busbetrieb Aarau.

AVA operates the following railway lines, all 1,000 mm (3 ft 3+3⁄8 in) metre gauge:

AVA operates a number of bus routes under its own name:

The company also operates, through its wholly owned subsidiary Limmat Bus AG, a network of 10 bus routes between Zürich and Killwangen. These services are operated under contract to Verkehrsbetriebe Zürich (VBZ), and carry that organisation's brand rather than that of AVA.