1st Electoral Unit of Republika Srpska

The first electoral unit of Republika Srpska is a parliamentary constituency used to elect members to the House of Representatives of Bosnia and Herzegovina since 2000. It consists of the municipalities of Krupa na Uni, Novi Grad, Kozarska Dubica, Prijedor, Ostra Luka, Kostajnica, Gradiska, Latasi, Srbac, Prnjavor, Petrovac, Banja Luka, Čelinac, Istočni Drvar, Ribnik, Mrkonjić Grad, Jezero, Kneževo, Kotor Varoš, Šipovo and Kupres.