| Narus River | |
| Pushpin Map: | Uganda |
| Subdivision Type1: | Country |
| Subdivision Name1: | Uganda, South Sudan |
| Subdivision Type3: | Region |
| Subdivision Name3: | Karamoja |
| Subdivision Type4: | District |
| Subdivision Name4: | Kaabong, Eastern Equatoria |
| Subdivision Type5: | City |
| Subdivision Name5: | Apoka |
| Source1: | Narus Valley |
| Source1 Location: | Kidepo Valley National Park, Karamoja, Uganda |
| Source1 Coordinates: | 3.6703°N 33.7697°W |
| Mouth: | Kidepo River |
| Mouth Location: | Komoloich, Sudan |
| Mouth Coordinates: | 3.9667°N 68°W |
| Tributaries Right: | Namamkweng |
The Narus River flows in a northwesterly direction through the southern portion of Kidepo Valley National Park in northern Uganda, joining the larger Kidepo River near Komoloich, about after entering Eastern Equatoria state of South Sudan.[1] The name Narus is derived from the Karamajong word for mud.[2] The Narus Valley has a 40% higher mean annual precipitation than the Kidepo Valley (89cm (35inches) versus 64cm (25inches)).[3] Together with a different soil structure, this creates perennial swamps and water pools along the Narus River in the middle of undulating grassland and bushland mosaic savanna, which draw plains game and are home to the Nile crocodile.[4] Most of the Park's tourist infrastructure is in Narus Valley, as much of the game from the more expansive northern Kidepo Valley migrates there during the dry season .