| Official Name: | Spodnji Log |
| 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: | Lower Carniola |
| Subdivision Type2: | Statistical region |
| Subdivision Name2: | Central Sava |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Litija |
| Area Total Km2: | 7.59 |
| Population As Of: | 2002 |
| Population Total: | 224 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 46.0844°N 14.8915°W |
| Elevation M: | 232.3 |
| Postal Code: | 1282 |
| Footnotes: | [1] |
Spodnji Log (in Slovenian pronounced as /ˈspoːdnji ˈloːk/; German: Unterlog[2]) is a village on the right bank of the Sava River in the Municipality of Litija in central Slovenia. The area is included with the rest of the municipality in the Central Sava Statistical Region. Traditionally, it was part of the Lower Carniola region.[3]
A covered bridge, built in 1935, stands east of the settlement. It crosses the Sava River to the village of Sava.