Montiferru is a historical region of central-western Sardinia, Italy. It takes its name from the eponymous extinct volcano massif, whose main peak is the Monte Urtigu (1,050 m). Extending for some 700 km², the massif had originally a maximum elevation of c. 1,600/1,700 m, later reduced due to erosion. The volcanic origin of the area is testified by the basaltic rocks of the seaside. Water sources are frequent, rivers from the area including the .