- American River
- Baker River
- Big Quilcene River
- Black River
- Bogachiel River
- Calawah River
- Carbon River
- Cedar River
- Chehalis River
- Chewuch River
- Chiwawa River
- Cispus River
- Cle Elum River
- Clearwater River
- Columbia River
- Colville River
- Cowlitz River
- Deschutes River
- Dickey River
- Dosewallips River
- Duckabush River
- Dungeness River
- Duwamish River
- Elwha River
- Entiat River
- Gray Wolf River
- Grays River
- Green River
- Greenwater River
- Hamma Hamma River
| - Hoh River
- Hoko River
- Humptulips River
- Kettle River
- Klickitat River
- Lewis River
- Little Pend Oreille River
- Little Spokane River
- Little White Salmon
- Mad River
- Mashel River
- Methow River
- Muddy River
- Naches River
- Naselle River
- Newaukum River
- Nisqually River
- Nooksack River
- Okanogan River
- Palouse River
- Pend Oreille River
- Pilchuck River
- Puyallup River
- Queets River
- Quillayute River
- Quinault River
- Raging River
- Rex River
- Samish River
- Sammamish River
| - Satsop River
- Sauk River
- Sol Duc River
- Skagit River
- Skokomish River
- Skookumchuck River
- Skykomish River
- Snake River
- Snohomish River
- Snoqualmie River
- Spokane River
- Stehekin River
- Stillaguamish River
- Stuck River
- Sultan River
- Tilton River
- Tolt River
- Toutle River
- Tucannon River
- Twisp River
- Walla Walla River
- Washougal River
- Wenatchee River
- White River
- White Salmon River
- Willapa River
- Wishkah River
- Wynoochee River
- Yakima River
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