| Acronym | Definition |
|---|
| ITIS➣Integrated Taxonomic Information System |
| ITIS➣Istituto Tecnico Industriale Statale (Italian: State Industrial Technical Institute) |
| ITIS➣Information Technology in School |
| ITIS➣Integrated Transport Information System |
| ITIS➣International Trade Institute of Singapore |
| ITIS➣Information Technology Infrastructure Services |
| ITIS➣International Tourism Institute |
| ITIS➣Information Technology Insurance Specialists |
| ITIS➣Internet Travel Information Service |
| ITIS➣International Taxonomic Information System |
| ITIS➣Integrating Technologies for Interactive Stories |
| ITIS➣International Trade Information Service |
| ITIS➣Integrated Technical Information Services |
| ITIS➣Interim Test Item Simulator |
| ITIS➣Intelligent Transportation Infrastructure System |