| IOCA | Image Object Content Architecture | 图像对象内容体系结构 |
| IOCA | Intercollegiate Outing Club Association | 校际外出俱乐部协会 |
| IOCA | International Optimist Class Association (sailing) | 国际乐观主义者协会（帆船） |
| IOCA | Interception Of Communications Act | 《拦截通信法》 |
| IOCA | In Ovo Carcinogenicity Assay | 体外致癌性试验 |
| IOCA | International Organization of Culture and Arts | 国际文化艺术组织 |
| IOCA | Islands Of Croatia Award | 克罗地亚群岛奖 |