| Official Name: | Planina |
| 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 Type3: | Municipality |
| Subdivision Name3: | Ajdovščina |
| Area Total Km2: | 6.49 |
| Population As Of: | 2020 |
| Population Total: | 490 |
| Population Density Km2: | auto |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 45.8565°N 13.9064°W |
| Elevation M: | 277 |
| Footnotes: | [1] |
Planina (in Slovenian pronounced as /plaˈnìːna/) is a village in the hills south of the Vipava Valley on the border with the Karst Plateau in the Municipality of Ajdovščina in the traditional Inner Carniola region of Slovenia.[2] It is now generally regarded as part of the Slovenian Littoral. It is made up of smaller clusters of the hamlets of Štrancarji, Marci, Dolenja Vas (Slovenian: Dolenja vas), Brithi, Gorenja Vas (Slovenian: Gorenja vas), and Koboli.[3]
The parish church in the settlement is dedicated to Saint Cantius and belongs to the Koper Diocese. A second church belonging to the parish is built on a hill south of the main settlement and is dedicated to Saint Paul.[4]