| Official Name: | Slepšek |
| 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: | Mokronog-Trebelno |
| Area Total Km2: | 0.78 |
| Population As Of: | 2002 |
| Population Total: | 109 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 45.9451°N 15.1263°W |
| Elevation M: | 257.1 |
| Footnotes: | [1] |
Slepšek (in Slovenian pronounced as /ˈsleːpʃək/) is a small settlement west of Mokronog in the Municipality of Mokronog-Trebelno in southeastern Slovenia. The area is part of the historical region of Lower Carniola. The municipality is now included in the Southeast Slovenia Statistical Region.[2]
The local church is dedicated to Martin of Tours and belongs to the Parish of Mokronog. It has a Romanesque nave with a 16th-century extension. The building was restyled in the Baroque in the mid-18th century.[3]