| Official Name: | Belšak |
| 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: | Carinthia |
| Subdivision Type2: | Statistical region |
| Subdivision Name2: | Carinthia |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Prevalje |
| Area Total Km2: | 2.29 |
| Population As Of: | 2002 |
| Population Total: | 42 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 46.5747°N 14.8551°W |
| Elevation M: | 677.7 |
| Footnotes: | [1] |
Belšak (in Slovenian pronounced as /ˈbeːlʃak/ or in Slovenian pronounced as /ˈbeːu̯ʃak/) is a small dispersed settlement in the Municipality of Prevalje in the Carinthia region in northern Slovenia, right on the border with Austria.[2]