Tassullo is a frazione located within the municipality of Ville d'Anaunia in the Trentino region of northern Italy. It is situated in the autonomous province of Trentino-Alto Adige/Südtirol, approximately 42 kilometres (26 mi) north of the city of Trento.
As of December 31, 2004, Tassullo encompassed an area of 13.5 square kilometres (5.2 mi2) and had a recorded population of 1,856 residents.