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

It was first recorded in year 1200 as Castri.

In 2000 the population count was back on 81.

In 2004 the municipality was merged with the other, neighboring municipalities Corzoneso, Dongio, Largario, Leontica, Lottigna, Marolta, Ponto Valentino and Prugiasco to form a new and larger municipality Acquarossa.

This Ticino location article is a stub.