Kasilof River
General data
- Name: Kasilof River
- Water system: Gulf of Alaska
- Water type: River
- Progression: Cook Inlet -> Gulf of Alaska -> Pacific Ocean -> Planet Earth
- Climates: Subpolar
- Continents: North America
- Countries: United States of America
The Kasilof River or Ggasilatnu in the Dena'ina language is a river on the western Kenai Peninsula in southern Alaska.
It begins at Tustumena Lake and flows northwest to Cook Inlet near Kasilof.
The upper section of the river is very swift, with several sections considered Class II whitewater, and underwater hazards are difficult to detect, due to the silty nature of the glacial runoff that comprises most of the river.
The entire river has powerful currents and is very cold. There is public access to the lower section from the Sterling Highway. Drift and bank fishing for salmon is popular on the lower Kasilof.