| Official Name: | Belsko |
| Pushpin Map: | Slovenia |
| Pushpin Label Position: | right |
| 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: | Postojna |
| Area Total Km2: | 2.44 |
| Population As Of: | 2002 |
| Population Total: | 168 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 45.8198°N 14.1559°W |
| Elevation M: | 517.8 |
| Blank Name: | Climate |
| Blank Info: | Cfb |
| Footnotes: | [1] |
Belsko (in Slovenian pronounced as /ˈbeːlskɔ/) is a village northwest of Postojna in the Inner Carniola region of Slovenia.[2]
The local church in the settlement is dedicated to Saint Justus and belongs to the Parish of Studeno.[3]