| Official Name: | Ubukun |
| Native Name: | Убукун |
| Settlement Type: | Settlement |
| Pushpin Map: | Russia Buryatia#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Republic of Buryatia |
| Subdivision Name3: | Selenginsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +8:00 |
| Coordinates: | 51.4333°N 141°W[1] |
Ubukun (Russian: Убукун; Buriat: Бухэн, Bukhen) is a rural locality (a settlement) in Selenginsky District, Republic of Buryatia, Russia. The population was 67 as of 2010.[2]