Criștioru de Jos is a commune located in the Bihor County of the Crișana region in Romania. It currently has a population of 1,154 people.
The commune is composed of five distinct villages: Bâlc, Criștioru de Jos, Criștioru de Sus (also known as Felsőbiharkristyór), Poiana (Biharmező), and Săliște de Vașcău (Vaskohszeleste).