Cojocna (Hungarian: Kolozs; German: Salzgrub, Klosmarkt) is a commune in Cluj County, Transylvania, Romania. It is composed of eight villages: Boj-Cătun (Bósi alagút), Boju (Kolozsbós), Cara (Kolozskara), Cojocna, Huci (Cserealja), Iuriu de Câmpie (Mezőőr), Moriști (Hurubák), and Straja (Szávatanya).
According to the census from 2011, there were 4,194 people living in this commune; of this population, 55.8% were ethnic Romanians, 20.4% were ethnic Roma, and 16.7% were ethnic Hungarians.[3] At the 2021 census, Cojocna had a population of 4,291.[4]