IUC

IUC may refer to:


 * International Union of Crystallography, founded in 1948
 * International University College of Turin, a university located in Torino, Italy
 * International University of Chabahar, a university located in Chabahar, Iran
 * Inter-University Center for Japanese Language Studies, a Japanese language school located in Yokohama, Japan
 * IntraUterine Contraceptive, a hormonal contraceptive