| Cocioc | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Ilfov, Giurgiu |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Berceni, Vărăști |
| Length: | 38km (24miles) |
| Mouth: | Sabar |
| Mouth Coordinates: | 44.2017°N 26.272°W |
| Basin Size: | 156km2 |
The Cocioc is a left tributary of the river Sabar in Romania. It flows into the Sabar in Valea Dragului. Its length is 38km (24miles) and its basin size is 156km2.