| Apatiu | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Bistrița-Năsăud County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Jimbor, Manic, Apatiu, Chețiu, Beudiu, Nușeni |
| Length: | 25km (16miles) |
| Mouth: | Meleș |
| Mouth Location: | Nușeni |
| Mouth Coordinates: | 47.0955°N 24.2017°W |
| Progression: | Meleș→ |
| Basin Size: | 174km2 |
| Tributaries Left: | Beudiu |
The Apatiu is a left tributary of the river Meleș in Romania. It flows into the Meleș in Nușeni.[1] Its length is 25km (16miles) and its basin size is 174km2.