| IID | Interaural Intensity Difference | 两侧声音强度差别 |
| IID | Image Intensifier Device | 图像增强设备 |
| IID | Insulin Dependent Diabetes | 胰岛素依赖型糖尿病 |
| IID | Internet Infrastructure Division | 互联网基础设施部 |
| IID | Instance Identifier | 实例标识符 |
| IID | International Institutional Delivery | 国际机构交付 |
| IID | Interface Identifier | 接口标识符 |
| IID | Insulin Independent Diabetes | 胰岛素非依赖性糖尿病 |
| IID | Institute for Interreligious Dialogue | 宗教间对话研究所 |
| IID | Infinite Improbability Drive (Hitchhikers Guide to the Galaxy by Douglas Adams) | 无限不可能驾驶（道格拉斯·亚当斯《银河系漫游指南》） |
| IID | Ignition Interlock Device (automotive security system) | 点火联锁装置（汽车安全系统） |
| IID | Independent & Identically Distributed (statistics) | 独立同分布的统计和) |
| IID | Integrated Infrastructure Development | 综合基础设施开发 |
| IID | Interface Identifier (Component Object Model) | 接口标识符（组件对象模型） |
| IID | Improvised Incendiary Device | 简易燃烧装置 |
| IID | Imperial Irrigation District (California) | 帝国灌溉区（加利福尼亚州） |
| IID | Integrated Interoperability Demonstration | 集成互操作性演示 |
| IID | Internal Iterative Deepening (chess programming technique) | 内部迭代深化（国际象棋编程技术） |
| IID | Infrared Intrusion Detection | 红外入侵探测 |
| IID | Indian Institute of Design (New Delhi, India) | 印度设计学院（印度新德里） |
| IID | Iterative Incremental Development | 迭代增量开发 |
| IID | Integrated Information Display | 综合信息显示 |
| IID | Independent and Identically Distributed | 独立及相等的分布 |
| IID | interaural intensity disparity | 耳间强度差异 |
| IID | Independent Identically Distributed | 独立同一分布 |