| Official Name: | Grinjan |
| Pushpin Map: | Slovenia |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Slovenia |
| Coordinates: | 45.5113°N 13.7296°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Slovenia |
| Subdivision Type1: | Traditional region |
| Subdivision Name1: | Littoral |
| Subdivision Type2: | Statistical region |
| Subdivision Name2: | Coastal–Karst |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Koper |
| Area Total Km2: | 0.64 |
| Elevation M: | 165.9 |
| Population Total: | 88 |
| Population As Of: | 2002 |
| Footnotes: | [1] |
Grinjan (pronounced as /sl/) is a settlement south of Koper in the Littoral region of Slovenia.[2]