| En Name: | Krasnoarmeysky District |
| Ru Name: | Красноармейский район |
| Loc Name1: | Красноармейски районӗ |
| Loc Lang1: | Chuvash |
| Image View: | Янмурзино,_улица_Ленина.jpg |
| Coordinates: | 55.7672°N 47.1697°W |
| Federal Subject: | Chuvash Republic |
| Adm Data As Of: | December 2011 |
| Adm Ctr Type: | selo |
| Adm Ctr Name: | Krasnoarmeyskoye |
| Selsoviet Type1: | rural settlement |
| No Of Selsoviets Type1: | 9 |
| No Of Rural Localities: | 89 |
| Mun Data As Of: | November 2011 |
| Mun Formation1: | Krasnoarmeysky Municipal District |
| Mun Formation1 No Of Urban Settlements: | 0 |
| Mun Formation1 No Of Rural Settlements: | 9 |
| Area Km2: | 456.3 |
| Pop 2010Census: | 16036 |
| Urban Pop 2010Census: | 0% |
| Rural Pop 2010Census: | 100% |
| Established Date: | January 9, 1935 |
| Website: | http://gov.cap.ru/main.asp?govid=67 |
| Date: | October 2011 |
Krasnoarmeysky District (ru|Красноарме́йский райо́н; cv|Красноармейски районӗ, Krasnoarmeyski rayonĕ) is an administrative[1] and municipal[2] district (raion), one of the twenty-one in the Chuvash Republic, Russia. It is located in the north of the republic and borders with Cheboksarsky District in the north, Tsivilsky District in the northeast, Kanashsky and Vurnarsky Districts in the south, and with Alikovsky and Morgaushsky Districts in the west. The area of the district is 456.3km2.[3] Its administrative center is the rural locality (a selo) of Krasnoarmeyskoye. Population: The population of Krasnoarmeyskoye accounts for 26.6% of the district's total population.
The district was established on January 9, 1935.