| IEC | International electrician council | 国际电工协会 |
| IEC | International Electrotechnical Commission | 国际电子技术委员会 |
| IEC | ion-exchange column chromatography | 离子交换层析 |
| IEC | Independent Ethics Committee | 独立伦理委员会 |
| IEC | Integrated Ethernet Chip | 集成以太网电路芯片 |
| IEC | InterExchange Carrier | 局间载波 |
| IEC | integrated environmental controls | 综合环境控制 |
| IEC | Indirect Evaporative Cooling | 间接蒸发冷却 |
| IEC | Institute of Employment Consultants (UK) | 就业顾问协会(英国) |
| IEC | International Engineering Consortium | 国际工程协会 |
| IEC | Importer Exporter Code | 进出口商代码 |
| IEC | Infused Emitter Coupling | 注入发射极耦合 |
| IEC | Intelligence Evaluation Committee | 情报评估委员会 |
| IEC | Institutional Ethics Committee | 机构道德委员会 |
| IEC | Independent Electoral Commission (South Africa) | 独立选举委员会(南非) |
| IEC | International Electromechanical Commission | 国际机电委员会 |
| IEC | Import Export Code | 导入导出代码 |
| IEC | International Electrotechnical Committee (Geneve, Switzerland) | 国际电工委员会(瑞士日内瓦) |
| IEC | Indianapolis Endoscopy Center | 印第安纳波利斯内镜中心 |
| IEC | Industrial Ecology Center | 工业生态中心 |
| IEC | Independent Electrical Contractors | 独立电气承包商 |
| IEC | Interactive Evolutionary Computation | 交互式进化计算 |
| IEC | Indiana Endoscopy Center | 印第安纳州内镜中心 |
| IEC | Internet Empowered Consumer | 互联网赋能消费者 |
| IEC | intraepithelial carcinoma | 上皮内癌 |
| IEC | Incoming Error Count (BNR) | 传入错误计数(BNR) |
| IEC | intermediate endolymphatic sac | 中间内淋巴囊 |
| IEC | International Evangelical Church | 国际福音教会 |
| IEC | Inertial Electrostatic Confinement | 惯性静电限制 |
| IEC | International Electro-technical Commission | 国际电工委员会 |
| IEC | Inland Empire Coalition | 内陆帝国联盟 |
| IEC | Ingeniero En Electronica Y Comunicaciones (Mexico) | Ingeniero En Electronica Y Comunicaciones(墨西哥) |
| IEC | Internet Easy Chat | Internet轻松聊天 |
| IEC | Institute for Economic Competitiveness (University of Central Florida) | 经济竞争力研究所(中佛罗里达大学) |
| IEC | Information Education Communication | 信息教育传播 |
| IEC | Imagery Exploitation Cell (w/in CARS) | 利用细胞(意象在车里) |
| IEC | Interstate Electronics Corporation | 州际电子公司 |
| IEC | Interuniversity Expertise Center | 大学间专业中心 |
| IEC | Integrated Exploitation Capability | 综合开发能力 |
| IEC | Institut d'Estudis Catalans (Barcelona, Spain) | Institut d 'Estudis回西班牙(西班牙巴塞隆纳) |
| IEC | Island Eastern Corridor, Hong Kong | 香港东区走廊 |
| IEC | International Executive Committee | 国际执行委员会 |
| IEC | Ion Exchange Chromatography | 离子交换色谱法 |
| IEC | Information, Education, and Communication | 信息、教育和通信 |
| IEC | Islamic Educational Center | 伊斯兰教育中心 |
| IEC | Ion-Exchange Capacity | 离子交换容量 |
| IEC | International Ethanol Commission (Brazil) | 国际乙醇委员会(巴西) |
| IEC | Israel Electric Company | 以色列电力公司 |
| IEC | International Extension College | 国际推广学院 |
| IEC | ISDN Echo Canceler | ISDN回音消除器 |
| IEC | Integration and Evaluation Center | 综合和鉴定中心 |
| IEC | Independent Exchange Carrier | 独立交换运营商 |
| IEC | Interamerican Ethanol Commission | 美洲乙醇委员会 |
| IEC | Ignition and Excitation Circuit | 点火和励磁电路 |
| IEC | Integrated Engine Control | 集成发动机控制 |
| IEC | Integrated Electronic Control | 集装电子控制 |
| IEC | Incremental Enabling Capability | 增量启用能力 |
| IEC | Item Entry Control | 项目登记控制 |
| IEC | Information, Education and Counseling | 信息、教育和咨询 |
| IEC | International Exchange Commission | 国际交流委员会 |