Hadrovci () is a settlement in the Kotor Varoš Municipality, Republika Srpska entity, Bosnia and Herzegovina. According to the 2013 census the village had 181 inhabitants. Until 1955, Hadrovci belonged to the former Previle municipality.
Population + Hadrovci; Census Year 2013: Total of 181 inhabitants Census 1991. 1981. 1971. Bosniaks 607 (99,02%)578 (99,31%)468 (94,16%)Croats3 (0,48%)00Serbs 2 (0,32%) 4 (0,68%)29 (5,83%)Yugoslavs000Others and unknown1 (0,16%)00Total613582497
References
Sources Vojnogeografski institut, Izd. (1955): Prnjavor (List karte 1:100.000, Izohipse na 20 m). Vojnogeografski institut, Beograd.