Ula Tirso (in Sardinian language just Ula) is a comune (municipality) in the Province of Oristano in the Italian region Sardinia, located about 90 kilometres (56 mi) north of Cagliari and about 30 kilometres (19 mi) northeast of Oristano. As of 31 December 2004, it had a population of 616 and an area of 18.8 square kilometres (7.3 sq mi).

Ula Tirso borders the following municipalities: Ardauli, Busachi, Ghilarza, Neoneli, Ortueri.

Demographic evolution