Petrinje (pronounced [pɛˈtɾiːnjɛ]; Italian: Petrigne) is a small village in the Municipality of Hrpelje-Kozina in the Littoral region of Slovenia.

Mass grave

Petrinje is the site of a mass grave associated with the Second World War. The Wasp Shaft Mass Grave (Slovene: Grobišče Osje brezno) is located in a terraced area west of Brdgodec Hill (elevation: 447 meters or 1,467 feet) north of Petrinje. It contains the remains of undetermined victims.

Church

The local church is dedicated to Saint Sebastian and belongs to the Parish of Klanec.