| Bârnaru | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Suceava |
| Length: | 20km (10miles) |
| Source1: | Bistrița Mountains |
| Mouth: | Bistrița |
| Mouth Coordinates: | 47.2848°N 25.636°W |
| Basin Size: | 93km2 |
| Tributaries Left: | Higa, Tomnatecu, Pârâul Sec |
The Bârnaru is a right tributary of the river Bistrița in Romania. It flows into the Bistrița between Crucea and Broșteni.[1] Its length is 20km (10miles) and its basin size is 93km2.