Sieve (river)
 The Sieve is a river in Italy. It is a tributary of the Arno River into which it flows at Pontassieve after a course of 62 km. The Sieve rises in the Tuscan-Emilian Apennines near the Futa Pass at 930 m of elevation.The territory in which it flows is known in Italian as Valdisieve. In Italian language the name Sieve is feminine and is therefore referred to as La Sieve.