| Official Name: | Gradnik |
| Pushpin Map: | Slovenia |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in Slovenia |
| Subdivision Type: | Country |
| Subdivision Name: | Slovenia |
| Subdivision Type1: | Traditional region |
| Subdivision Name1: | Lower Carniola |
| Subdivision Type2: | Statistical region |
| Subdivision Name2: | Southeast Slovenia |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Semič |
| Area Total Km2: | 2.05 |
| Population As Of: | 2002 |
| Population Total: | 68 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 45.6712°N 15.2422°W |
| Elevation M: | 295.4 |
| Footnotes: | [1] |
Gradnik (pronounced as /sl/) is a village in the Municipality of Semič in Slovenia. The area is part of the historical region of Lower Carniola. The municipality is now included in the Southeast Slovenia Statistical Region.[2]
Gradnik is the site of a mass grave from the Second World War. The Pintarca Mass Grave (sl|Grobišče Pintarca) is located on the southwest slope of a large sinkhole about 700m (2,300feet) east of Omota. It contains the remains of four to six people killed by the Partisans in October 1943.[3]
The local church is dedicated to Saint Nicholas and belongs to Parish of Semič. It was first mentioned in written documents dating to 1523 and was restyled in the Baroque in the 18th century.[4]