| Official Name: | Kharyasta |
| Native Name: | Харьяста |
| Settlement Type: | Ulus |
| Pushpin Map: | Russia Buryatia#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Republic of Buryatia |
| Subdivision Name3: | Kyakhtinsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +8:00 |
| Coordinates: | 50.7167°N 144°W[1] |
Kharyasta (Russian: Харьяста) is a rural locality (an ulus) in Kyakhtinsky District, Republic of Buryatia, Russia. The population was 18 as of 2010.[2] There is 1 street.
Kharyasta is located 47 km north of Kyakhta (the district's administrative centre) by road. Novodesyatnikovo is the nearest rural locality.[3]