| Cășoaca Mare | |
| Name Other: | Cașoca |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Buzău County |
| Length: | 16km (10miles) |
| Source1: | Buzău Mountains |
| Mouth: | Buzău |
| Mouth Location: | Cașoca |
| Mouth Coordinates: | 45.4841°N 26.2557°W |
| Basin Size: | 57km2 |
| Tributaries Left: | Titilău, Pruncea, Trestia |
The Cășoaca Mare (also: Cașoca) is a left tributary of the river Buzău in Romania. It discharges into the Buzău in the village Cașoca.[1] Its length is 16km (10miles) and its basin size is 57km2.