| Official Name: | Šmartno v Rožni Dolini |
| Pushpin Map: | Slovenia |
| Pushpin Label Position: | bottom |
| 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: | Savinja |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Celje |
| Area Total Km2: | 2.39 |
| Population As Of: | 2020 |
| Population Total: | 251 |
| Population Density Km2: | auto |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 46.2946°N 15.2429°W |
| Elevation M: | 315.7 |
| Footnotes: | [1] |
Šmartno v Rožni Dolini (pronounced as /sl/; sl|Šmartno v Rožni dolini) is a settlement in the City Municipality of Celje in eastern Slovenia. It lies on the northern outskirts of Celje. The area is part of the traditional region of Styria. It is now included with the rest of the municipality in the Savinja Statistical Region.[2]
The local parish church, which the settlement is named after, is dedicated to Saint Martin and belongs to the Roman Catholic Diocese of Celje. It was first mentioned in written documents dating to 1335.[3]
Nearby Lake Šmartno (sl|Šmartinsko jezero) is named after the settlement.