| Coșna | |
| Name Other: | Bancu, Coșnița |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Suceava County |
| Length: | 14km (09miles) |
| Mouth: | Bancu |
| Mouth Coordinates: | 47.4181°N 25.183°W |
| Progression: | Bancu→ Teșna→ |
| Basin Size: | 59km2 |
The Coșna (in its upper course also Coșnița) is a right tributary of the river Bancu in Romania.[1] It flows into the Bancu near Valea Bancului. Its length is 14km (09miles) and its basin size is 59km2.
The following rivers are tributaries to the river Coșna (from source to mouth):