Sivilla is a river in Innlandet county, Norway. The 9-kilometre (5.6 mi) long river runs through the municipalities of Tynset and Alvdal, even forming part of the municipal boundary for part of its course. The river is the primary outflow of the lake Savalen, and ends up in the river Glåma.

The river begins at the southeastern side of the lake Savalen at a dam. The river's water is regulated at the dam, where the water is exploited by the 62-megawatt (83,000 hp) Savalen hydropower station.

• List of rivers in Norway