| IEG | Investment Experts' Group | 投资专家组 |
| IEG | Implementing Electronic Government | 实施电子政务 |
| IEG | Investment Experts' Group | 投资专家组 |
| IEG | Infrastructure Enablement Group (AMD) | 基础设施支持组（AMD） |
| IEG | Imagery Exploitation Group | 图像开发组 |
| IEG | Internet Entertainment Group | 互联网娱乐集团 |
| IEG | Integrated Equipment Group (US IRS) | 综合装备集团（美国IRS） |
| IEG | International Environmental Governance | 国际环境治理 |
| IEG | Immunopathology Exchange Group | 免疫病理学交流组 |
| IEG | Information Exchange Guide | 信息交换指南 |
| IEG | Immediately Early Genes | 立即早期基因 |
| IEG | Institute of Economic Growth (India) | 经济增长研究所（印度） |
| IEG | Zielona Gora, Poland | 齐埃洛娜·戈拉，波兰 |
| IEG | Industries Electriques et GaziÈres (French: Gas and Electric Industries) | Industries Electriques et GaziÈres (French: Gas and Electric Industries) |
| IEG | Institut fÜr Europäische Geschichte (German: Institute of European History) | Institut fÜr Europäische Geschichte (German: Institute of European History) |
| IEG | International Engineering Graduate (India) | 国际工程毕业生（印度） |
| IEG | Information Exchange Group | 情报资料交流小组 |
| IEG | Interfaith Environmental Group | 宗教间环境小组 |