| En Name: | Kaslinsky District |
| Ru Name: | Каслинский район |
| Image View: | Vishnevogorsk.jpg |
| Coordinates: | 55.8833°N 105°W |
| Federal Subject: | Chelyabinsk Oblast |
| Adm Data As Of: | October 2012 |
| Adm Ctr Type: | town |
| Adm Ctr Name: | Kasli |
| Town Of District Significance Type: | Towns |
| No Of Towns Of District Significance: | 1 |
| Urban-Type Settlement Of District Significance Type: | Work settlements |
| No Of Urban-Type Settlements Of District Significance: | 1 |
| Selsoviet Type1: | Selsoviets |
| No Of Selsoviets Type1: | 9 |
| No Of Cities Towns: | 1 |
| No Of Urban-Type Settlements: | 1 |
| No Of Rural Localities: | 45 |
| Mun Data As Of: | October 2012 |
| Mun Formation1: | Kaslinsky Municipal District |
| Mun Formation1 No Of Urban Settlements: | 2 |
| Mun Formation1 No Of Rural Settlements: | 9 |
| Area Km2: | 3356 |
| Pop 2010Census: | 17680 |
| Urban Pop 2010Census: | 25.8% |
| Rural Pop 2010Census: | 74.2% |
| Website: | http://www.kasli.org/ |
| Date: | December 2012 |
Kaslinsky District (Russian: Ка́слинский райо́н) is an administrative and municipal district (raion), one of the twenty-seven in Chelyabinsk Oblast, Russia.[1] It is located in the north of the oblast. The area of the district is 3356km2.[2] Its administrative center is the town of Kasli. Population (excluding the administrative center): 14,955 (2002 Census);
Within the framework of administrative divisions, it has a status of a town with territorial district—a unit equal in status to administrative districts—the full name of which is The Town of Kasli and Kaslinsky District (Russian: город Касли и Каслинский район). As a municipal division, it is incorporated as Kaslinsky Municipal District.