Tenno is a comune in Trentino in the northern Italian region Trentino-Alto Adige/Südtirol, located about 30 kilometres southwest of Trento. Ten…Tenno is a comune in Trentino in the northern Italian region Trentino-Alto Adige/Südtirol, located about 30 kilometres southwest of Trento. Tenno borders the following municipalities: Comano Terme, Fiavè, Arco, Ledro and Riva del Garda. Its neighborhood of Canale is one of I Borghi più belli d'Italia.