| Official Name: | Bilyutay |
| Native Name: | Билютай |
| Settlement Type: | Selo |
| 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: | 50.8667°N 120°W[1] |
Bilyutay (Russian: Билютай; Buriat: Бγлюутэ, Büliuute) is a rural locality (a selo) in Selenginsky District, Republic of Buryatia, Russia. The population was 212 as of 2010.[2] There are 11 streets.
Bilyutay is located 96 km southeast of Gusinoozyorsk (the district's administrative centre) by road. Podlopatki and Verkhny Mangirtuy are the nearest rural locality.[3]