| Official Name: | Mrzli Log |
| 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 Name2: | Gorizia |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Idrija |
| Area Total Km2: | 6.9 |
| Population As Of: | 2002 |
| Population Total: | 22 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 45.9376°N 13.9716°W |
| Elevation M: | 900.9 |
| Footnotes: | [1] |
Mrzli Log (pronounced as /sl/) is a dispersed settlement in the hills west of Črni Vrh in the Municipality of Idrija[2] in the traditional Inner Carniola region of Slovenia.[3]