Kőszeg (Hungarian: Kőszegi járás) is a district in north-western part of Vas County.

The district is located in the Western Transdanubia Statistical Region.

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

Besides the Hungarian majority, the main minorities are the Croat and German (approx.

1,500 persons in Kőszeg District did not declare their ethnic group at the 2011 census.