Dongio is a village and former municipality in the canton of Ticino, Switzerland.


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.

Coordinates: 46°26′N 8°57′E / 46.433°N 8.950°E / 46.433; 8.950