| Acronym | Definition |
|---|
| JAST➣Joint Advanced Strike Technology |
| JAST➣Journal of American Studies of Turkey |
| JAST➣Joint Assistance Strategy for Tanzania (Embassy of Denmark; Tanzania) |
| JAST➣Joint-Action Science and Technology (EU) |
| JAST➣Japan America Society of Tucson (est. 1981; Tucson, AZ) |
| JAST➣Japanese Association for the Surgery of Trauma |
| JAST➣Joint Applications of Speech Technology |