Be
- Bean River - New Hampshire
- Bear Creek - Alabama
- Bear Creek - Oregon
- Bear River (Feather River tributary) - California
- Bear River (Mokelumne River tributary) - California
- Bear River - Michigan
- Bear River - Utah, Idaho, Wyoming
- Bear River - Wisconsin
- Bearcamp River - New Hampshire
- Beaucoup Creek - Illinois
- Beaver Brook - New Hampshire, Massachusetts
- Beaver Creek - Alaska
- Beaver Creek - Iowa
- Beaver Kill - New York
- Beaver River - New York
- Beaver River - Oklahoma
- Beaver River - Pennsylvania
- Beaver River - Rhode Island
- Beaver Dam River - Wisconsin
- Beaverhead River - Montana
- Beebe River - New Hampshire
- Beech Creek - Pennsylvania
- Beech Fork - Kentucky (Beech Fork of the Salt River)
- Beech River - New Hampshire
- Beech River - Tennessee
- Bellamy River - New Hampshire
- Belle River - Michigan
- Belle Fourche River - Wyoming, South Dakota
- Belt Creek - Montana
- Berrys River - New Hampshire
- Betsie River - Michigan
Read more about this topic: List Of Rivers Of The United States: B