| Acronym | Definition |
|---|
| IIST➣Indian Institute of Space Science and Technology (also seen as IISST) |
| IIST➣Indore Institute of Science & Technology (India) |
| IIST➣International Institute for Software Testing |
| IIST➣International Institute for Software Technology (United Nations) |
| IIST➣Institute for International Studies and Training |
| IIST➣International Institute of Sports Therapy |
| IIST➣Institute for Information Storage Technology |
| IIST➣International Institute for Strategic Studies |
| IIST➣Institute of Information Sciences and Technology (Massey University) |
| IIST➣International Institute of Sports Therapists (UK) |
| IIST➣Institute for Information Systems Technology |
| IIST➣Indian Institute of Software Testing |
| IIST➣International Institute of Soccer Tourism |
| IIST➣Institut de l'Information Scientifique et Technique (French) |
| IIST➣Institute of Intelligent Systems and Technologies (St.Petersburg State Technical University) |
| IIST➣Interprocessor Interrupt and Sanity Timer |
| IIST➣Institute of Information Science &Technology (Modinagar,India) |
| IIST➣Independent IIMS (Independent Information Management System) Study Team |
| IIST➣Intelligent Information Systems Technology |
| IIST➣Institution of Instrumentation Scientists and Technologists (India) |
| IIST➣Internet/Intranet Strategic Team |
| IIST➣Initial Integrated System Test |