| En Name: | Gagarinsky District |
| Ru Name: | Гагаринский район |
| Image View: | Gagarin town - Rayon administration.jpg |
| Coordinates: | 55.5942°N 35.3886°W |
| Image Coa: | Coat of arms Gagarinsky rayon (Smolensk oblast).gif |
| Federal Subject: | Smolensk Oblast |
| Adm Data As Of: | February 2013 |
| Adm Ctr Type: | town |
| Adm Ctr Name: | Gagarin |
| Town Of District Significance Type: | Urban settlements |
| No Of Towns Of District Significance: | 1 |
| Selsoviet Type1: | Rural settlements |
| No Of Selsoviets Type1: | 15 |
| No Of Cities Towns: | 1 |
| No Of Rural Localities: | 254 |
| Mun Data As Of: | November 2011 |
| Mun Formation1: | Gagarinsky Municipal District |
| Mun Formation1 No Of Urban Settlements: | 1 |
| Mun Formation1 No Of Rural Settlements: | 15 |
| Area Of What: | administrative district |
| Area As Of: | February 2013 |
| Area Km2: | 2904.59 |
| Pop 2010Census: | 48928 |
| Urban Pop 2010Census: | 64.8% |
| Rural Pop 2010Census: | 35.2% |
| Website: | http://www.rodinagagarina.ru/ |
| Commonscat: | Gagarinsky District of Smolensk Oblast |
| Date: | May 2013 |
Gagarinsky District (Russian: Гага́ринский райо́н) is an administrative[1] and municipal[2] district (raion), one of the twenty-five in Smolensk Oblast, Russia. It is located in the northeast of the oblast. The area of the district is 2904.59km2. Its administrative center is the town of Gagarin. Population: 48,928 (2010 Census); The population of Gagarin accounts for 64.8% of the district's total population.