| Official Name: | Sredny Kharlun |
| Native Name: | Средний Харлун |
| Settlement Type: | Ulus |
| Pushpin Map: | Russia Buryatia#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Republic of Buryatia |
| Subdivision Name3: | Bichursky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +8:00 |
| Coordinates: | 50.6333°N 161°W[1] |
Sredny Kharlun (Russian: Средний Харлун, Buriat: Дунда Харлан, Dunda Kharlan) is a rural locality (an ulus) in Bichursky District, Republic of Buryatia, Russia. The population was 395 as of 2010.[2] There are 5 streets.
Sredny Kharlun is located 56 km west of Bichura (the district's administrative centre) by road. Bolshoy Lug is the nearest rural locality.[3]