| Ratua Khola | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Nepal, India |
| Subdivision Type5: | Cities |
| Subdivision Name5: | Damak, Chapramari, KohabaraGauriganj |
| Source1: | Chure Pahad |
| Source1 Location: | Ilam, Nepal |
| Mouth: | Kankai River |
| Mouth Location: | Kishanganj district, India |
| Mouth Coordinates: | 26.1781°N 87.6961°W |
The Ratua Khola (Nenglish: Ratuwa Riveria) (Nepali: रतुवा खोला) is a river in eastern Nepal. It originates from Chure Pahad of Nepal and merges with the Kankai River in Bihar, India. The river is the eastern border of Damak, a big and developed city in eastern Nepal. The river also touches Chilhara village.[1] [2]