| En Name: | Chamzinsky District |
| Ru Name: | Чамзинский район |
| Loc Name1: | Чаунзабуе |
| Loc Lang1: | Erzya |
| Loc Name2: | Чамзинкань аймак |
| Loc Lang2: | Moksha |
| Image View: | Церковь трёх святителей село Сабур-Мачкасы Зимний вид.JPG |
| Coordinates: | 54.4°N 92°W |
| Federal Subject: | Republic of Mordovia |
| Adm Data As Of: | June 2015 |
| Adm Ctr Type: | work settlement |
| Adm Ctr Name: | Chamzinka |
| Urban-Type Settlement Of District Significance Type: | Work settlements |
| No Of Urban-Type Settlements Of District Significance: | 2 |
| Selsoviet Type1: | Selsoviets |
| No Of Selsoviets Type1: | 12 |
| No Of Urban-Type Settlements: | 2 |
| No Of Rural Localities: | 51 |
| Mun Data As Of: | May 2014 |
| Mun Formation1: | Chamzinsky Municipal District |
| Mun Formation1 No Of Urban Settlements: | 2 |
| Mun Formation1 No Of Rural Settlements: | 12 |
| Area Km2: | 1009.5 |
| Pop 2010Census: | 31639 |
| Urban Pop 2010Census: | 72.6% |
| Rural Pop 2010Census: | 27.4% |
| Website: | http://chamzinka.e-mordovia.ru/ |
| Date: | October 2012 |
| Population of Chamzinsky District | |
| Label1: | 2010 Census |
| Data1: | 31,639 |
| Label2: | 2002 Census |
| Data2: | 33,871 |
| Label3: | 1989 Census |
| Data3: | 36,077 |
| Label4: | 1979 Census |
| Data4: | 34,888 |
Chamzinsky District (Russian: Ча́мзинский райо́н; Erzya: Чаунзабуе, Čaunzabuje; Moksha: Чамзинкань аймак, Čamzinkań ajmak) is an administrative[1] and municipal[2] district (raion), one of the twenty-two in the Republic of Mordovia, Russia. It is located in the east of the republic. The area of the district is 1009.5km2.[3] Its administrative center is the urban locality (a work settlement) of Chamzinka.[4] As of the 2010 Census, the total population of the district was 31,639, with the population of Chamzinka accounting for 29.9% of that number.
Within the framework of administrative divisions, Chamzinsky District is one of the twenty-two in the republic. It is divided into two work settlements (administrative divisions with the administrative centers in the work settlements (inhabited localities) of Chamzinka and Komsomolsky) and twelve selsoviets, all of which comprise fifty-one rural localities. As a municipal division, the district is incorporated as Chamzinsky Municipal District. Chamzinka and Komsomolsky Work Settlements are incorporated into two urban settlements, and the twelve selsoviets are incorporated into twelve rural settlements within the municipal district. The work settlement of Chamzinka serves as the administrative center of both the administrative and municipal district.