| Acronym | Definition |
|---|
| JBA | Japan Blockchain Association |
| JBA | Japan Boiler Association |
| JBA | Java Browser Applet |
| JBA | Java Business Applications |
| JBA | Japan Bioindustry Association |
| JBA | Jacksonville Bar Association (Jacksonville, FL) |
| JBA | Japanese Bankers Association |
| JBA | John Brown's Army (gaming, Splinter Cell: Double Agent) |
| JBA | Journal of Biblical Accuracy (Greece) |
| JBA | Japan Bodyguard Association (Japan) |
| JBA | Joseph Baldwin Academy (Truman State University) |
| JBA | Japan Blogging Association |
| JBA | Japan Boomerang Association |
| JBA | Journal of Biocommunication |
| JBA | Japan Boccia Association |
| JBA | Jewish Basketball Association |
| JBA | Japan Building Africa (est. 2011) |
| JBA | Jeweled Battle Axe (weapon in game Shilla) |
| JBA | Johnboat Bass Association |
| JBA | Japanese Bioindustry Association (Japan) |
| JBA | Japan Breeders Association (aka Breeders Association of Japan) |