| Official Name: | Ulentuy |
| Native Name: | Улентуй |
| Settlement Type: | Ulus |
| Pushpin Map: | Russia Buryatia#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Republic of Buryatia |
| Subdivision Name3: | Zakamensky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +8:00 |
| Coordinates: | 50.4833°N 128°W[1] |
Ulentuy (Russian: Улентуй; Buriat: Υлэнтэ, Ülente) is a rural locality (an ulus) in Zakamensky District, Republic of Buryatia, Russia. The population was 375 as of 2010.[2] There are 5 streets.
Ulentuy is located 22 km north of Zakamensk (the district's administrative centre) by road. Dutulur is the nearest rural locality.[3]