| Official Name: | Trebelno |
| 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: | 1.69 |
| Population As Of: | 2002 |
| Population Total: | 110 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 45.9121°N 15.15°W |
| Elevation M: | 517.6 |
| Footnotes: | [1] |
Trebelno (in Slovenian pronounced as /tɾɛˈbéːu̯nɔ/) is a village in the Municipality of Mokronog-Trebelno in the traditional region of Lower Carniola of southeastern Slovenia. The municipality is now included in the Southeast Slovenia Statistical Region.[2]
The parish church, built on a slight elevation in the centre of the settlement, is dedicated to the Holy Cross and belongs to the Roman Catholic Diocese of Novo Mesto. It dates to the 16th century and was largely rebuilt in the late 18th century.[3]