| CII | Chartered Insurance Institute (UK) | 英国特许保险协会 |
| CII | conscil international des infirmieres | 国际医务人员协会 |
| CII | Centro de Investigaciones de IngenierÍa, USAC | Centro de Investigaciones de IngenierÍa, USAC |
| CII | Criminal Information Index | 犯罪信息指数 |
| CII | Conference Interpreters International (Brussels, Belgium) | 国际会议口译员(比利时布鲁塞尔) |
| CII | Children's Institute International | 儿童学院国际 |
| CII | Critical Infrastructure Information | 关键基础架构信息 |
| CII | Chemistry International Instrument | 国际化学仪器 |
| CII | Common Integrated Infrastructure | 通用集成基础设施 |
| CII | carnegie interest inventory | 卡内基利息清单 |
| CII | Computer-Integrated Instruction | 计算机综合教学 |
| CII | Communications and Information Industries | 通信和信息产业 |
| CII | Confederation of Indian Industry | 印度工业联盟 |
| CII | Configuration Item Identification | 配置项标识 |
| CII | Critical Information Infrastructures | 关键信息基础设施 |
| CII | Configuration Item Index | 配置项索引 |
| CII | Commercial, Industrial & Institutional | 商业、工业及制度 |
| CII | Central Intelligence Institute (fictional agency) | 中央情报局(虚构机构) |
| CII | Connecticut Innovations, Inc. | 康涅狄格州创新公司。 |
| CII | Compassion International Incorporated | 同情国际公司 |
| CII | Calculated Ignition Index | 计算的点火指数 |
| CII | Configuration Identification Index | 配置标识索引 |
| CII | Construction Industry Institute (University of Texas) | 建筑工业研究所(德克萨斯大学) |
| CII | Chidambaram's India, Inc. | 哦,是印度的 |
| CII | Compatibility, Integration, and Interoperability | 兼容性、集成性和互操作性 |
| CII | Celebrations India, Inc. | 庆祝印度公司。 |
| CII | Council of Institutional Investors | 机构投资者委员会 |
| CII | Coady International Institute | 科迪国际研究所 |
| CII | Cornerstone Industry, Inc. | 基石工业公司。 |
| CII | Criminal Investigation Index | 刑事调查索引 |
| CII | Compatibility, Interoperability, and Integration | 兼容性、互操作性和集成 |
| CII | Schedule II Controlled Substance (USA) | 附表II受控物质(美国) |
| CII | Counter Iranian Influence | 反伊朗影响 |
| CII | Cleveland Industries Inc. | 克利夫兰工业公司。 |
| CII | Cybernetic Industries Incorporated | Cybernetic Industries公司 |
| CII | Computer Intrusion Incident | 计算机入侵事件 |
| CII | Configuration Identification/Item Index | 配置识别/物品索引 |