| Official Name: | Slamnjak |
| 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: | Styria |
| Subdivision Type2: | Statistical region |
| Subdivision Name2: | Mura |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Ljutomer |
| Area Total Km2: | 1.71 |
| Population As Of: | 2002 |
| Population Total: | 173 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 46.4943°N 16.2132°W |
| Elevation M: | 236 |
| Footnotes: | [1] |
Slamnjak (pronounced as /sl/, German: Kummersberg[2]) is a small settlement in the hills south of Ljutomer in northeastern Slovenia. The area belongs to the traditional Styria region and is now included in the Mura Statistical Region.[3]
The painter Ante Trstenjak was born in the village in 1894.