| En Name: | Mamsko-Chuysky District |
| Ru Name: | Мамско-Чуйский район |
| Coordinates: | 58.3081°N 112.9031°W |
| Federal Subject: | Irkutsk Oblast |
| Adm Data As Of: | December 2011 |
| Adm Ctr Type: | work settlement |
| Adm Ctr Name: | Mama |
| No Of Urban-Type Settlements: | 5 |
| No Of Rural Localities: | 11 |
| Counts Ref: | [1] |
| Mun Data As Of: | December 2012 |
| Mun Formation1: | Mamsko-Chuysky Municipal District |
| Mun Formation1 No Of Urban Settlements: | 5 |
| Mun Formation1 No Of Rural Settlements: | 0 |
| Area Km2: | 43396 |
| Pop 2010Census: | 5501 |
| Urban Pop 2010Census: | 93.5% |
| Rural Pop 2010Census: | 6.5% |
| Website: | http://mchr.irkobl.ru/ |
| Date: | February 2013 |
Mamsko-Chuysky District (Russian: Ма́мско-Чу́йский райо́н) is an administrative district, one of the thirty-three in Irkutsk Oblast, Russia.[2] Municipally, it is incorporated as Mamsko-Chuysky Municipal District.[3] The area of the district is 43396km2.[4] Its administrative center is the urban locality (a work settlement) of Mama.[5] Population: 7,990 (2002 Census); The population of Mama accounts for 66.0% of the district's total population.
The district borders the Sakha Republic and the Lena River in the north. It includes parts of the basins of the Vitim, Mama and Chuya rivers, as well as several of their tributaries.[6]