It is a municipality of the district of Riviera-Pays-d'Enhaut in the canton of Vaud in Switzerland.
Montreux is in the French-speaking part of Switzerland.
Montreux is a traditional resort town on Lake Geneva. Nestled between steep hills and the lakeside, it's known for its mild microclimate and the Montreux Jazz Festival, held in July. The town's promenade is lined with flowers, sculptures, Mediterranean trees and grand Belle Époque buildings. Offshore is a medieval island castle, Château de Chillon, with ramparts, formal halls and a chapel with 14th-century murals.