| Derecske District | |
| Native Name: | Derecskei járás |
| Native Name Lang: | hu |
| Settlement Type: | Districts of Hungary |
| Image Blank Emblem: | HUN Derecske COA.jpg |
| Blank Emblem Type: | Coat of arms |
| Subdivision Type: | Country |
| Subdivision Type1: | County |
| Subdivision Name1: | Hajdú-Bihar |
| Seat Type: | District seat |
| Seat: | Derecske |
| Area Total Km2: | 650.30 |
| Area Rank: | 5th in Hajdú-Bihar |
| Population As Of: | 2011 census |
| Population Total: | 41,701 |
| Population Rank: | 4th in Hajdú-Bihar |
| Population Density Km2: | 64 |
Derecske (Hungarian: Derecskei járás) is a district in central-eastern part of Hajdú-Bihar County. Derecske is also the name of the town where the district seat is found. The district is located in the Northern Great Plain Statistical Region.
Derecske District borders with Debrecen District and Nyíradony District to the north, the Romanian county of Bihor to the east, Berettyóújfalu District to the south, Püspökladány District and Hajdúszoboszló District to the west. The number of the inhabited places in Derecske District is 13.
The district has 2 towns, 2 large villages and 9 villages.(ordered by population, as of 1 January 2012)[1] The bolded municipalities are cities, italics municipalities are large villages.
In 2011, it had a population of 41,701 and the population density was 64/km2.
Besides the Hungarian majority, the main minorities are the Roma (approx. 2,000) and Romanian (300).
Total population (2011 census): 41,701
Ethnic groups (2011 census):[3] Identified themselves: 40,738 persons:
37,464 (91.96%)
2,657 (6.52%)
Approx. 2,000 persons in Derecske District did not declare their ethnic group at the 2011 census.
Religious adherence in the county according to 2011 census:[4]