The 4th constituency of Jász-Nagykun-Szolnok County (Hungarian: Jász-Nagykun-Szolnok megyei 04. számú országgyűlési egyéni választókerület) is one of the single member constituencies of the National Assembly, the national legislature of Hungary.

The constituency standard abbreviation: Jász-Nagykun-Szolnok 04.

[2] Since 2022, it has been represented by Zsolt Herczeg of the Fidesz–KDNP party alliance.

The 4th constituency is located in southern part of Jász-Nagykun-Szolnok County.

The constituency was first represented by István Boldog of the Fidesz from 2014 to 2022.