| Acronym | Definition |
|---|
| ICST | Information, Communication and Space Technology (United Nations Economic and Social Commission for Asia and the Pacific) |
| ICST | International Conference on Software Testing Verification and Validation (IEEE) |
| ICST | Institute for Computer Music and Sound Technology (Zurich, Switzerland) |
| ICST | Incompetent to Stand Trial (law) |
| ICST | Imperial College of Science and Technology (UK) |
| ICST | Institute for Computer Science and Technology |
| ICST | Institute for Computer Sciences & Technology |
| ICST | Intra-Company Stock Transfer (retail) |