| ☕🏞️ Coffee River |
| ❄️🌊 Cold River |
| 🌊 Colorado River |
| 🏞️ Concrete River |
| 🍪 Cookie River |
| 🌽🌊 Corn River |
| 🌽🏞️ Corny River |
| 🤧🌊 Cough River |
| 🤧 Coughdrop River |
| 🌊🤧 Coughin' River |
| 🤧 Coughing River |
| 🌊🦀 Crab River |
| 🍎🌊 Crabapple River |
| 🖍️🏞️ Crayon River |
| 💦 Crimea River |
| 🐊🌊 Crocodile River |