| Ilimpeya | |
| Map: | Nizhnyaya Tunguska.png |
| Mouth: | Nizhnyaya Tunguska |
| Mouth Coordinates: | 63.3392°N 105.5825°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Russia |
| Length: | 611km (380miles) |
| Basin Size: | 17400km2 |
The Ilimpeya (ru|Илимпея) is a river in Krasnoyarsk Krai, Russia. It is a left tributary of the Nizhnyaya Tunguska. It is long, and has a drainage basin of .