| Acronym | Definition |
|---|
| JGA | Japan Guide Association |
| JGA | Japan Golf Association |
| JGA | Juxtaglomerular Apparatus |
| JGA | Jamnagar, India (Airport Code) |
| JGA | Japan Gas Association |
| JGA | Junior Golf Association |
| JGA | Just Go Away |
| JGA | Jupiter Gravity Assist (astronomy) |
| JGA | Journées Graphes et Algorithmes (French: Graph and Algorithm Days; conference) |
| JGA | Journal of Geometric Analysis |
| JGA | Jon Goldman Associates (Orange, CA) |
| JGA | Justice Guild of America (comic) |
| JGA | Jordanian Geologists' Association |
| JGA | Joint Geospatial-Intelligence Activity |
| JGA | Japan Gymnastics Association |