Sk-Sl
- Skagit River - Washington
- Skillet Fork - Illinois
- Skipanon River - Oregon
- Skokie River - Illinois
- Skokomish River - Washington
- Skookumchuck River - Washington
- Skuna River - Mississippi
- Skug River - Massachusetts
- Skuna River - Mississippi
- Skunk River - Iowa
- Skwentna River - Alaska
- Skykomish River - Washington
- Slab Fork - West Virginia
- Sleepy Creek - Virginia, West Virginia
- Sligo Creek - Maryland
- Slippery Rock Creek - Pennsylvania
- Slough Creek - Montana, Wyoming
Read more about this topic: List Of Rivers Of The United States: S