Fierozzo (Mócheno: Vlarötz; German: Florutz ) is a comune (municipality) in Trentino in the northern Italian region Trentino-Alto Adige/Südtirol, located about 15 kilometres (9 mi) northeast of Trento. As of 31 December 2004, it had a population of 456 and an area of 17.9 square kilometres (6.9 sq mi). In the census of 2001, 423 inhabitants out of 441 (95.9%) declared themselves members of the Mócheno linguistic group.
Fierozzo borders the following municipalities: Palù del Fersina, Sant'Orsola Terme, Torcegno, Frassilongo and Roncegno.