Cagnò (Nones: Ciagnòu or Cignòu) is a comune (municipality) in Trentino in the northern Italian region Trentino-Alto Adige/Südtirol, located about 35 kilometres (22 mi) north of Trento. As of 31 December 2004, it had a population of 378 and an area of 3.3 square kilometres (1.3 sq mi).

Cagnò borders the following municipalities: Laurein, Proveis, Rumo, Revò, Livo, and Cles.

Demographic evolution