Ru
- Rubicon River - California
- Rubicon River - Wisconsin
- Ruby River - Montana
- Rio Ruidoso - New Mexico
- Rum River - Minnesota
- Rumford River - Massachusetts
- Runnins River - Massachusetts, Rhode Island
- Rush River - Minnesota
- Rush River - Wisconsin
- Russian River - Alaska
- Russian River - California
Read more about this topic: List Of Rivers Of The United States: R