| En Name: | Osinsky District |
| Ru Name: | Осинский район |
| Coordinates: | 53.4°N 156°W |
| Image Coa: | Coat of Osinsky District, Irkutsk Oblast.png |
| Federal Subject: | Irkutsk Oblast |
| Adm Data As Of: | December 2013 |
| Adm Ctr Type: | selo |
| Adm Ctr Name: | Osa |
| No Of Rural Localities: | 37 |
| Counts Ref: | [1] |
| Mun Data As Of: | December 2004 |
| Mun Formation1: | Osinsky Municipal District |
| Mun Formation1 No Of Urban Settlements: | 0 |
| Mun Formation1 No Of Rural Settlements: | 12 |
| Mun Formation1 Counts Ref: | [2] |
| Area Km2: | 4400 |
| Pop 2010Census: | 20431 |
| Urban Pop 2010Census: | 0% |
| Rural Pop 2010Census: | 100% |
| Website: | http://osaadm.ru/ |
| Date: | February 2013 |
Osinsky District (Russian: Оси́нский райо́н; Buriat: Оһын аймаг, Ohyn aimag) is an administrative district of Ust-Orda Buryat Okrug of Irkutsk Oblast, Russia, one of the thirty-three in the oblast.[3] Municipally, it is incorporated as Osinsky Municipal District.[4] It is located in the south of the oblast. The area of the district is 4400km2.[5] Its administrative center is the rural locality (a selo) of Osa.[6] Population: 20,962 (2002 Census); The population of Osa accounts for 22.1% of the district's total population.