The Flumini Mannu is a river in southern Sardinia, Italy.

Flumini Mannu
Location
CountryItaly
Physical characteristics
MouthStagno di Cagliari
 • coordinates
39°15′48″N 9°00′38″E / 39.2633°N 9.0105°E / 39.2633; 9.0105
Length42 km (26 mi)
Basin features
ProgressionStagno di CagliariTyrrhenian Sea

Its springs are located in the hills east of Sardara. It flows into the Stagno di Cagliari after a course of 42.14 kilometres (26.18 mi). The river's main tributaries are the Riu Bellu and the Rio Sitzerri, which for most of the basin of Monte Linas massif's waters.[clarification needed]