Dongio is a village and former municipality in the canton of Ticino, Switzerland.
It was first recorded in year 1188 as Deuci.
The municipality also contained the villages Marogno and Motto.
In 2004 the municipality was merged with the other, neighboring municipalities Castro, Corzoneso, Largario, Leontica, Lottigna, Marolta, Ponto Valentino and Prugiasco to form a new and larger municipality Acquarossa.
This Ticino location article is a stub.