The 3rd constituency of Komárom-Esztergom County (Hungarian: Komárom-Esztergom megyei 03. számú országgyűlési egyéni választókerület) is one of the single member constituencies of the National Assembly, the national legislature of Hungary.

The constituency standard abbreviation: Komárom-Esztergom 03.

[2] Since 2014, it has been represented by Judit Czunyi-Bertalan of the Fidesz–KDNP party alliance.

The 3rd constituency is located in western part of Komárom-Esztergom County.

The constituency includes the following municipalities:[3][2] The constituency was first represented by Judit Czunyi-Bertalan of the Fidesz from 2014,[4] and he was re-elected in 2018[5] and 2022.