Su
- Suamico River - Wisconsin
- Sucarnoochee River - Alabama
- Sudbury River - Massachusetts
- Sugar Creek (Driftwood River) - Indiana
- Sugar Creek (Wabash River) - Indiana
- Sugar Creek - Ohio
- Sugar River - New Hampshire
- Sugar River - Wisconsin, Illinois
- Suiattle River - Washington
- Sulphur River - Texas, Arkansas
- Sumas River - Washington
- Sun River - Montana
- Suncook River - New Hampshire
- Sunday Creek - Ohio
- Sunday River - Maine
- Sunflower River - Mississippi
- Sunrise River - Minnesota
- Susan River - California
- Susitna River - Alaska
- Susquehanna River - New York, Pennsylvania, Maryland
- Suwannee River - Georgia, Florida
Read more about this topic: List Of Rivers Of The United States: S