| En Name: | Zabaykalsky District |
| Ru Name: | Забайкальский район |
| Image View: | Bahnhof Sabaikalsk.jpg |
| Coordinates: | 49.909°N 117.275°W |
| Image Coa: | Coat of Arms of Zabaikalsk (Chita oblast).png |
| Federal Subject: | Zabaykalsky Krai |
| Adm Data As Of: | January 2012 |
| Adm Ctr Type: | urban-type settlement |
| Adm Ctr Name: | Zabaykalsk |
| No Of Urban-Type Settlements: | 1 |
| No Of Rural Localities: | 10 |
| Mun Data As Of: | November 2011 |
| Mun Formation1: | Zabaykalsky Municipal District |
| Mun Formation1 No Of Urban Settlements: | 1 |
| Mun Formation1 No Of Rural Settlements: | 7 |
| Mun Formation1 Counts Ref: | [1] |
| Area Km2: | 5100 |
| Area Km2 Ref: | [2] |
| Pop 2010Census: | 20485 |
| Urban Pop 2010Census: | 57.5% |
| Rural Pop 2010Census: | 42.5% |
| Established Date: | January 2, 1967 |
| Website: | http://zabaikalskadm.ru/ |
| Date: | January 2013 |
Zabaykalsky District (Russian: Забайка́льский райо́н) is an administrative[3] and municipal[4] district (raion), one of the thirty-one in Zabaykalsky Krai, Russia. It is located in the southeast of the krai, and borders with Borzinsky District in the north, Krasnokamensky District in the east, District in the south, and with District in the west. The area of the district is 5100km2.[2] Its administrative center is the urban locality (an urban-type settlement) of Zabaykalsk. Population: 20,343 (2002 Census); The population of Zabaykalsk accounts for 57.5% of the district's total population.
The district was established on January 2, 1967.