| Acronym | Definition |
|---|
| JAA | Joint Aviation Authorities (European equivalent of FAA) |
| JAA | Journal of Algebra and Its Applications (World Scientific) |
| JAA | Japanese Association of Anatomists |
| JAA | Japan Aikido Association (martial arts) |
| JAA | Japan Association of Arbitrators (law) |
| JAA | Japan Asia Airways, Co., Ltd. (est. 1975) |
| JAA | Japanese Archaeological Association (est. 1948) |
| JAA | Joint Admissions Agreement (education) |
| JAA | Judge Advocates Association |
| JAA | Japan Advertisers Association |
| JAA | Japan Allergy Foundation |
| JAA | Junior All-American (football) |
| JAA | Japan Artists Association |
| JAA | Japan Arab Association |
| JAA | Junior Achievement of Armenia |
| JAA | Just Another Acronym |
| JAA | Joint Action Area |
| JAA | Joint Aerospace Applications (C2 mission applications) |
| JAA | Japan Adaptive Rowing Association |