| Official Name: | Darkhintuy |
| Native Name: | Дархинтуй |
| 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: | 50.5833°N 121°W[1] |
Darkhintuy (Russian: Дархинтуй; Buriat: Дархинта, Darkhinta) is a rural locality (an ulus) in Zakamensky District, Republic of Buryatia, Russia. The population was 59 as of 2010.[2] There are 4 streets.
Darkhintuy is located 35 km north of Zakamensk (the district's administrative centre) by road. Dutulur is the nearest rural locality.[3]