| Official Name: | Laptev Log |
| Native Name: | Лаптев Лог |
| Settlement Type: | Selo |
| Pushpin Map: | Russia Altai Krai#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Altai Krai |
| Subdivision Name3: | Uglovsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +7:00 |
| Coordinates: | 51.05°N 91°W[1] |
Laptev Log (Russian: Лаптев Лог) is a rural locality (a selo) and the administrative center of Laptevsky Selsoviet, Uglovsky District, Altai Krai, Russia. The population was 756 as of 2013.[2] It was founded in 1888. There are 6 streets.
Laptev Log is located 56 km south of Uglovskoye (the district's administrative centre) by road. Borisovka is the nearest rural locality.[3]