| Official Name: | Ostrog |
| 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: | Šentjernej |
| Area Total Km2: | 1.17 |
| Population As Of: | 2002 |
| Population Total: | 193 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 45.8588°N 15.3796°W |
| Elevation M: | 156 |
| Postal Code: | 8310 |
| Footnotes: | [1] |
Ostrog (in Slovenian pronounced as /ɔˈstɾoːk/) is a small village north of Dolnja Prekopa in the Municipality of Šentjernej in southeastern Slovenia. Its territory extends north of the main settlement to the banks of the Krka River. The entire municipality is part of the traditional region of Lower Carniola. It is now included in the Southeast Slovenia Statistical Region.[2]