Sumas River

General data
- Name: Sumas River
- Water system: Fraser River
- Water type: River
- Progression: Fraser River -> Strait of Georgia -> Salish Sea -> Pacific Ocean -> Planet Earth
- Climates: Temperate, Subpolar
- Continents: North America
- Countries: Canada
Description
The Sumas River is a river in the Fraser Lowland and a tributary of the Fraser River system, coursing across the international border between the Canadian province of British Columbia and the U.S. state of Washington.