The Snoqualmie River is a river with three forks which drains the west side of the Cascade Mountains in the central portion of King County, Washington starting near the town of North Bend, Washington. It flows northerly meeting the Skykomish River to form the Snohomish River at Monroe, Washington. It is joined by the Tolt River at Carnation, Washington.

The 45 mile (72 km) long river includes the famous Snoqualmie Falls.