Nyíregyháza (Hungarian: Nyíregyházi járás) is a district in western part of Szabolcs-Szatmár-Bereg County.

The district is located in the Northern Great Plain Statistical Region.

(ordered by population, as of 1 January 2013)[1] The bolded municipalities are cities.

4,000), German (1,000), Ukrainian (500), Romanian and Russian (400), Slovak (250), Rusyn and Chinese (150) and Polish (100).

14,000 persons in Nyíregyháza District did not declare their ethnic group at the 2011 census.