Kunszentmiklós (Hungarian: Kunszentmiklósi járás) is a district in north-western part of Bács-Kiskun County.

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

(ordered by population, as of 1 January 2012)[1] The bolded municipalities are cities.

Besides the Hungarian majority, the main minorities are the Roma (approx.

1,000 persons in Kunszentmiklós District did not declare their ethnic group at the 2011 census.