| Tohăneanca | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Prahova County |
| Subdivision Type3: | Villages |
| Subdivision Name3: | Valea Scheilor, Vadu Săpat, Mizil |
| Length: | 20km (10miles) |
| Mouth: | Ghighiu |
| Mouth Location: | Mizil |
| Mouth Coordinates: | 45.0046°N 26.4502°W |
| Progression: | Ghighiu→ |
| Basin Size: | 63km2 |
The Tohăneanca is a right tributary of the river Ghighiu in Romania. It flows into the Ghighiu in Mizil. Its length is 20km (10miles) and its basin size is 63km2.