Siror (German: Siraur) is a comune (municipality) in Trentino in the northern Italian region Trentino-Alto Adige/Südtirol, located about 60 kilometres (37 mi) east of Trento. As of 31 December 2004, it had a population of 1,244 and an area of 75.1 square kilometres (29.0 sq mi).
The municipality of Siror contains the frazioni (subdivisions) Nolesca and part of San Martino di Castrozza.
Siror borders the following municipalities: Canale d'Agordo, Predazzo, Canal San Bovo, Mezzano, Imer, Tonadico and Transacqua.
- ^ All demographics and other statistics: Italian statistical institute Istat.