| Nirajul Mic | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Mureș County |
| Length: | 15km (09miles) |
| Source1: | Gurghiu Mountains |
| Mouth: | Niraj |
| Mouth Location: | Câmpu Cetății |
| Mouth Coordinates: | 46.6742°N 25.0194°W |
| Basin Size: | 25km2 |
The Nirajul Mic (Hungarian: Kis-Nyárád, Hungarian pronunciation: NaNk, meaning Small Poplar) is the left headwater of the river Niraj in Transylvania, Romania. It joins the Nirajul Mare in the village of Câmpu Cetății to form the Niraj. Its length is 15km (09miles) and its basin size is 25km2.
This river should not be confused with the Nirajul Mic, having the same name, but joining the Niraj near the city of Miercurea Nirajului