| Treznea | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Sălaj County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Treznea, Românași |
| Length: | 12km (07miles) |
| Mouth: | Agrij |
| Mouth Location: | Românași |
| Mouth Coordinates: | 47.1061°N 23.1842°W |
| Progression: | Agrij→ |
| Basin Size: | 46km2 |
| Tributaries Left: | Ciumărna |
The Treznea is a left tributary of the river Agrij in Romania. It flows into the Agrij in Românași. Its length is 12km (07miles) and its basin size is 46km2.