Baciu is a commune in Cluj County.
Baciu may also refer to:
Baciu (Olt), a tributary of the Olt in Covasna County Baciu (surname), a Romanian surname Baciu, a village in Blejești Commune, Teleorman County Baciu, a former village in Brașov County, now part of Săcele city Baciu, a tributary of the Râul Doamnei (Argeș basin) in Argeș County