The 4th constituency of Hajdú-Bihar County () is one of the single member constituencies of the National Assembly, the national legislature of Hungary. The constituency standard abbreviation: Hajdú-Bihar 04. OEVK.

Since 2026, it has been represented by István Vitányi of the Fidesz–KDNP party alliance.

Geography The 4th constituency is located in south-eastern part of Hajdú-Bihar County.

List of municipalities The constituency includes the following municipalities:

Members The constituency was first represented by István Vitányi of the Fidesz from 2014, and he was re-elected in 2018, 2022, and 2026.

Election Member Party % 2014 István Vitányi Fidesz 47.18 2018 55.09 2022 61.66 2026 47.82

References