St
- Stanislaus River - California
- Steer Creek - West Virginia
- Stehekin River - Washington
- Steinhatchee River - Florida
- Sticky River - Maine
- Stikine River - Alaska
- Still River - Connecticut
- Stillaguamish River - Washington
- Stillwater River - Massachusetts
- Stillwater River - southern Montana
- Stillwater River - western Montana
- Stillwater River - Ohio
- Stillwater River - Rhode Island
- Stinking River - Virginia
- Stonecoal Creek - West Virginia
- Stones River - Tennessee
- Stonycreek River - Pennsylvania
- Stono River - South Carolina
- Stony Brook - New Hampshire
- Stony River - Alaska
- Stony River - West Virginia
- Stop River - Massachusetts
- Straight River - Minnesota, tributary of Fish Hook River
- Straight River - Minnesota, tributary of Cannon River
- Straight River - Wisconsin
- Strawberry River - Arkansas
- Strong River - Mississippi
- Stroudwater River - Maine
- Stuck River - Washington
- Styx River - Alabama
Read more about this topic: List Of Rivers Of The United States: S