| Official Name: | Primostek |
| 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: | White Carniola |
| Subdivision Type2: | Statistical region |
| Subdivision Name2: | Southeast Slovenia |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Metlika |
| Area Total Km2: | 1.59 |
| Population As Of: | 2002 |
| Population Total: | 130 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 45.6278°N 15.2944°W |
| Elevation M: | 144.4 |
| Postal Code: | 8332 |
| Footnotes: | [1] |
Primostek (in Slovenian pronounced as /ˈpɾiːmɔstək/) is a village in the Municipality of Metlika in the White Carniola area of southeastern Slovenia. It lies on the right bank of the Lahinja River, close to its confluence with the Kolpa River, next to the border with Croatia. The entire area is part of the traditional region of Lower Carniola and is now included in the Southeast Slovenia Statistical Region.[2]