| ICWG | International Car Wash Guild | 国际洗车协会 |
| ICWG | International Coordination Working Group | 国际协调工作组 |
| ICWG | Iceland Communication Working Group | 冰岛通信工作组 |
| ICWG | International Chameleon Working Group | 国际变色龙工作组 |
| ICWG | Integrated Concepts Working Group | 综合概念工作组 |
| ICWG | Industry Cluster Working Groups | 产业集群工作组 |
| ICWG | Inter-Center Working Group | 中心间工作组 |
| ICWG | Intermediate Cold-Wet Glove | 中级冷湿手套 |
| ICWG | Instructional Computing Working Group | 教学计算工作组 |
| ICWG | Information Commons Project Working Group | 信息共享项目工作组 |
| ICWG | Intelligence Communications Working Group | 情报通信工作组 |
| ICWG | Ice Core Working Group | 冰芯工作组 |
| ICWG | Interagency Conservation Working Group | 机构间保护工作组 |
| ICWG | Interface Control Working Group | 接口控制工作组 |