Saane (German, in French: Sarine) is one of the larger rivers in Switzerland. It is 128 km long and has a drainage area of 1,892 km². It is a tributary of the river Aar. The source of the Saane is at the foot of the Sanetschhorn , in the western part of the Bernese Oberland. The Saane flows through the following Swiss cantons and towns:
The Saane flows into the river Aar approx. 15 km west of Bern.