| Acronym | Definition |
|---|
| JJA➣June July August |
| JJA➣Jazz Journalists Association |
| JJA➣Japanese Journal of Allergology |
| JJA➣Juvenile Justice Authority (Kansas) |
| JJA➣Japan Juku Association (education) |
| JJA➣just joking around |
| JJA➣Japan Jewellery Association (Tokyo, Japan) |
| JJA➣Josephson Junction Array |
| JJA➣Johnson and Johnston Associates |