| Official Name: | Polajna |
| 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: | Zreče |
| Area Total Km2: | 0.15 |
| Population As Of: | 2002 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 46.3712°N 15.343°W |
| Elevation M: | 509.7 |
| Footnotes: | [1] |
Polajna (in Slovenian pronounced as /pɔˈlaːi̯na/) is a small settlement in the Municipality of Zreče in northeastern Slovenia. It lies on the main road from Zreče to Vitanje. The area is part of the traditional region of Styria and is now included with the rest of the municipality in the Savinja Statistical Region.[2]
Polajna was a hamlet of Stranice until 1998, when it was administratively separated and became a village in its own right. Further territorial adjustment was made between Polajna and the village of Mala Gora in 2004.[3]
Polajna is the site of two known mass graves from the end of the Second World War. They contain the remains of an unknown number of Croatian soldiers and civilians that were disarmed and then murdered at the end of the war. Most of the victims were murdered in the mine, but a smaller group was murdered at the tailings dump. The Polajna Mine Mass Grave (Slovenian: Grobišče rudnik Polajna), also known as the Hasenbichl Mine Mass Grave (Slovenian: Grobišče Hasenbichlov rudnik), is located on a slope north of the houses at Polajna no. 10. It is an abandoned mine shaft.[4] The Mine Tailings Mass Grave (Slovenian: Grobišče pod rudniško jalovino) is located south of the settlement, 60m (200feet) from the house at Poljana no. 1.[5]