Iezer may refer to several places in Romania:
Iezer, a village in Hilișeu-Horia Commune, Botoșani County Iezer, a village in Puiești Commune, Vaslui County Iezer Mountains in Argeș County Iezer, a tributary of the Ighiu in Alba County Iezer (Tutova), tributary of the Tutova in Vaslui County Iezer, a tributary of the Mălaia in Vâlcea County Iezerul Mare, a tributary of the Bătrâna in Argeș County