Bedretto (Lombard: Bidré) is a municipality and a village in the Val Bedretto , the upper most part of the river Ticino . It belongs to the district of Leventina in the canton of Ticino in Switzerland .

In 1906, pre-Roman graves and a Roman era villa and coins were discovered in Bedretto. The presumption, that it was originally part of Airolo , could not be confirmed by any available records. Bedretto is first mentioned in 1210 as Bedoledo and at that time it was a separate municipality. Already in 1227, when the alpine pastures of Leventina valley were divided among the communities, Bedretto had dependent, surrounding farms and hamlets.