| Ozunca | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Covasna County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Ozunca-Băi, Bățanii Mari |
| Length: | 18km (11miles) |
| Mouth: | Baraolt |
| Mouth Coordinates: | 46.0855°N 25.6712°W |
| Progression: | Baraolt→ |
| Basin Size: | 96km2 |
| Tributaries Left: | Valea Întunecoasă, Pârâul Șeii |
| Tributaries Right: | Pârâul Șoptitor |
The Ozunca is a left tributary of the river Baraolt in Romania. It discharges into the Baraolt near Biborțeni. Its length is 18km (11miles) and its basin size is 96km2. The name Ozunca is used mostly for the upper reach of the river, while the name Bățani is used for the lower reach.
The following rivers are tributaries to the river Ozunca (from source to mouth):