| Official Name: | Trnje |
| Pushpin Map: | Slovenia |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location in Slovenia |
| Subdivision Type: | Country |
| Subdivision Name: | Slovenia |
| Subdivision Type1: | Traditional region |
| Subdivision Name1: | Inner Carniola |
| Subdivision Type2: | Statistical region |
| Subdivision Name2: | Littoral–Inner Carniola |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Pivka |
| Area Total Km2: | 39.46 |
| Population As Of: | 2002 |
| Population Total: | 243 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 45.6864°N 14.2249°W |
| Elevation M: | 534.5 |
| Footnotes: | [1] |
Trnje (in Slovenian pronounced as /ˈtəɾnjɛ/, German: Dorn[2]) is a village east of Pivka in the Inner Carniola region of Slovenia.[3]
Trnje is the site of two known mass graves associated with the Second World War. The Tiček Cave Mass Grave (Slovenian: Grobišče Tičkova jama) lies north of the village, in a shallow karst valley on the east side of Lake Petelinje (Slovenian: Petelinjsko jezero). It contains the remains of undetermined victims based on human bones found at the site by spelunkers.[4] The Shaft 1 by the Muha Enclosure Mass Grave (Slovenian: Grobišče Brezno 1 pri Muhovi ogradi) lies 2km (01miles) northeast of the village. It was excavated in October 2009, revealing 37 victims and eight German military ID tags. The remains were reburied in December 2009 in Block F of the German military cemetery in Celje.[5]
The parish church in the settlement is dedicated to the Holy Trinity and belongs to the Koper Diocese.[6] It was built in 1895 in the neo-Romanesque style based on plans by the architect Raimund Jeblinger. It stands on a small hill south of the village.[7]
The village offers farm tourism[8] and a riding school.[9]