| Official Name: | Grajena |
| 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: | Styria |
| Subdivision Type2: | Statistical region |
| Subdivision Name2: | Drava |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Ptuj |
| Area Total Km2: | 1.76 |
| Population As Of: | 2002 |
| Population Total: | 324 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 46.456°N 15.8398°W |
| Elevation M: | 261.8 |
| Footnotes: | [1] |
Grajena (pronounced as /sl/) is a settlement located on the Grajena Creek in the Municipality of Ptuj in northeastern Slovenia. The area is part of the traditional region of Styria. It is now included with the rest of the municipality in the Drava Statistical Region.[2]
Parts of the Roman water system supplying nearby Poetovio has been identified near the settlement.[3]