Copalis River
General data
- Name: Copalis River
- Water system: Pacific Ocean
- Water type: River
- Progression: Pacific Ocean -> Planet Earth
- Climates: Temperate
- Continents: North America
- Countries: United States of America
The Copalis River is a stream on the Olympic Peninsula in the U.S. state of Washington. It originates in the foothills on the southwest side of the Olympic Mountains and empties into the Pacific Ocean.