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

In 2001 the municipality was merged with the other, neighboring municipalities Lopagno , Roveredo, Sala Capriasca , Tesserete and Vaglio to form a new and larger municipality Capriasca.

Cagiallo is first mentioned in the 13th Century as Guzallo. In 1335 it was mentioned as Cazallo. Together with Lopagno and Campestro, Cagiallo formed a Bürgergemeinde from the Middle Ages through the modern era.

The late medieval church of S. Matteo was rebuilt 1672, but retained the romanesque clock tower.