| Official Name: | Deben |
| Native Name: | Дэбэн |
| Settlement Type: | Ulus |
| 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: | 50.7333°N 124°W[1] |
Deben (ru|Дэбэн) is a rural locality (an ulus) in Selenginsky District, Republic of Buryatia, Russia. The population was 158 as of 2010.[2] There are 2 streets.
Deben is located 81 km south of Gusinoozyorsk (the district's administrative centre) by road. Nur-Tukhum is the nearest rural locality.[3]