| ICCG | Incomplete Conjugate Gradient | 不完全共轭梯度 |
| ICCG | Independent Computer Consulting Group | 独立计算机咨询集团 |
| ICCG | International Conference on Crystal Growth | 晶体生长国际会议 |
| ICCG | International Catholic Centre of Geneva | 日内瓦国际天主教中心 |
| ICCG | International Catholic Conference of Guiding | 国际天主教指导会议 |
| ICCG | Intercommunication-Communication Control Group | 内部通信—通信控制组 |
| ICCG | Incomplete Cholesky Conjugate Gradients | 不完全Cholesky共轭梯度 |
| ICCG | International Collaborative Cancer Group | 国际合作癌症小组 |
| ICCG | Iowa Community Cultural Grants | 爱荷华州社区文化补助金 |
| ICCG | Invacare Continuing Care Group | Invacare持续护理组 |