| Lotrișor | |
| Pushpin Map: | Romania |
| Subdivision Type1: | Country |
| Subdivision Name1: | Romania |
| Subdivision Type2: | Counties |
| Subdivision Name2: | Vâlcea County |
| Length: | 7km (04miles) |
| Mouth: | Olt |
| Mouth Coordinates: | 45.3034°N 24.2867°W |
| Basin Size: | 16km2 |
| Tributaries Right: | Galbenu |
The Lotrișor is a right tributary of the river Olt in Romania. It discharges into the Olt north of Călimănești. Its length is 7km (04miles) and its basin size is 16km2.[1] The Lotrișor flows through the Cozia National Park, located in south-central Romania.[2]