| Tatabánya District | |
| Native Name: | Tatabányai járás |
| Native Name Lang: | hu |
| Settlement Type: | Districts of Hungary |
| Image Blank Emblem: | HUN Tatabánya Címer.svg |
| Blank Emblem Type: | Coat of arms |
| Subdivision Type: | Country |
| Subdivision Type1: | County |
| Subdivision Name1: | Komárom-Esztergom |
| Seat Type: | District seat |
| Seat: | Tatabánya |
| Area Total Km2: | 331.65 |
| Area Rank: | 4th in Komárom-Esztergom |
| Population As Of: | 2011 census |
| Population Total: | 85,691 |
| Population Rank: | 2nd in Komárom-Esztergom |
| Population Density Km2: | 258 |
Tatabánya (hu|Tatabányai járás; de|Kreis Totiserkolonie) is a district in south-eastern part of Komárom-Esztergom County. Tatabánya is also the name of the town where the district seat is found. The district is located in the Central Transdanubia Statistical Region.
Tatabánya District borders with Tata District and Esztergom District to the north, Budakeszi District (Pest County) to the east, Bicske District (Fejér County) to the east and south, Oroszlány District to the west. The number of the inhabited places in Tatabánya District is 10.
The district has 1 urban county and 9 villages.(ordered by population, as of 1 January 2013)[1] The bolded municipality is the city.
In 2011, it had a population of 85,691 and the population density was 131/km².
Besides the Hungarian majority, the main minorities are the German (approx. 3,900), Roma (1,400), Slovak (450) and Romanian (250).
Total population (2011 census): 85,691
Ethnic groups (2011 census):[3] Identified themselves: 78,453 persons:
71,561 (91.22%)
3,883 (4.95%)
1,323 (1.69%)
Approx. 7,000 persons in Tatabánya District did not declare their ethnic group at the 2011 census.
Religious adherence in the county according to 2011 census:[4]