| ITIS | International Tourism Institute | 国际旅游协会 |
| ITIS | Integrating Technologies for Interactive Stories | 交互式故事集成技术 |
| ITIS | International Taxonomic Information System | 国际分类信息系统 |
| ITIS | Intelligent Transportation Infrastructure System | 智能交通基础设施系统 |
| ITIS | Integrated Taxonomic Information System | 综合分类信息系统 |
| ITIS | Interim Test Item Simulator | 临时测试项目模拟器 |
| ITIS | Information Technology Insurance Specialists | 信息技术保险专家 |
| ITIS | Information Technology In School | 学校信息技术 |
| ITIS | International Trade Institute of Singapore | 新加坡国际贸易学院 |
| ITIS | Information Techniques For Irrigation Systems | 灌溉系统信息技术 |
| ITIS | Internet Travel Information Service | 互联网旅游信息服务 |
| ITIS | Integrated Transport Information System | 综合交通信息系统 |
| ITIS | Industry & Technology Intelligence Services | 工业和技术情报服务 |
| ITIS | Integrated Technical Information Services | 综合技术信息服务 |
| ITIS | International Trade Information Service | 国际贸易信息服务 |