| Official Name: | Petrinje |
| Pushpin Map: | Slovenia |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location in Slovenia |
| Subdivision Type: | Country |
| Subdivision Name: | Slovenia |
| Subdivision Type1: | Traditional region |
| Subdivision Type2: | Statistical region |
| Subdivision Name2: | Coastal–Karst |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Hrpelje-Kozina |
| Area Total Km2: | 4.69 |
| Population As Of: | 2002 |
| Population Total: | 47 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 45.5748°N 13.907°W |
| Elevation M: | 416.8 |
| Footnotes: | [1] |
Petrinje (in Slovenian pronounced as /pɛˈtɾiːnjɛ/; Italian: Petrigne) is a small village in the Municipality of Hrpelje-Kozina in the Littoral region of Slovenia.[2]
Petrinje is the site of a mass grave associated with the Second World War. The Wasp Shaft Mass Grave (Slovenian: Grobišče Osje brezno) is located in a terraced area west of Brdgodec Hill (elevation: 447m (1,467feet)) north of Petrinje. It contains the remains of undetermined victims.[3]
The local church is dedicated to Saint Sebastian and belongs to the Parish of Klanec.[4]