Tassullo (Ladin: Tasul, ) is a frazione of the municipality of Ville d'Anaunia (municipality) in Trentino in the northern Italian region Trentino-Alto Adige/Südtirol, located about 42 km north of Trento. As of 31 December 2004, it had a population of 1,856 and an area of 13.5 km2. The municipality of Ville d'Anaunia contains the frazioni (subdivisions, mainly villages and hamlets) Rallo, Sanzenone, Pavillo, Tassullo, Campo, Tuenno, Nanno and Portolo. Tassullo borders the following municipalities: Sanzeno and Cles.

Demographic evolution