| IIC | International Institute of Communications | 国际通信学会 |
| IIC | Incoming International Center | 入局国际中心 |
| IIC | International Institute for Conservation (of Historic and Artistic Works) | 国际保护协会(历史和艺术作品) |
| IIC | Iowa Institute for Cooperatives | 爱荷华州合作社协会 |
| IIC | Intercultural Institute of California (San Francisco, CA) | 加利福尼亚跨文化研究所(加利福尼亚州旧金山) |
| IIC | Impact Insulation Class (construction) | 冲击绝缘等级(结构) |
| IIC | International Information Center | 国际信息中心 |
| IIC | Interdepartmental Intelligence Conference | 部门间情报会议 |
| IIC | Institution Identification Codes | 机构识别码 |
| IIC | Investigator-In-Charge | 调查负责人 |
| IIC | Igorot International Consultation | Igorot国际咨询 |
| IIC | Internal Investigation Command (MET) | 内部调查司令部(MET) |
| IIC | Idiots In Charge | 负责的白痴 |
| IIC | Infranet Initiative Council | 基础设施倡议委员会 |
| IIC | International Internet Connectivity | 国际互联网连接 |
| IIC | International Import Certificate | 国际进口证书 |
| IIC | Implementation, Interoperability and Conformance | 实施、互操作性和一致性 |
| IIC | Inter-American Investment Corporation | 美洲投资公司 |
| IIC | Inter Integrated Circuit | 内部集成电路 |
| IIC | Integrated Circuit Card | 集成电路卡 |
| IIC | Idaho Industrial Commission | 爱达荷州工业委员会 |
| IIC | Independent Inquiry Committee | 独立调查委员会 |
| IIC | Interactive Image Capture | 交互式图像捕获 |
| IIC | Impersonal Interrogative Comment | 非个人化询问评论 |
| IIC | Industry Initiated Change | 行业引发的变革 |
| IIC | Item Identification Code | 物品识别代号 |
| IIC | Iterative Interference Cancellation/Canceller | 迭代干扰对消/抵消 |
| IIC | Iterative Interference Cancellation | 迭代干扰消除 |
| IIC | Initial Instrumentation Capability | 初始仪表能力 |