| Official Name: | Lesnoy |
| Native Name: | Лесной |
| Settlement Type: | Settlement |
| Pushpin Map: | Russia Buryatia#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Republic of Buryatia |
| Subdivision Name3: | Tarbagataysky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +8:00 |
| Coordinates: | 51.7167°N 160°W[1] |
Lesnoy (Russian: Лесной) is a rural locality (a settlement) in Tarbagataysky District, Republic of Buryatia, Russia. The population was 6 as of 2010.[2] There is 1 street.
Lesnoy is located 60 km northeast of Tarbagatay (the district's administrative centre) by road. Nikolayevsky is the nearest rural locality.[3]