| JJA | Jazz Journalists Association | 爵士乐记者协会 |
| JJA | Japan Jewelery Association | 日本珠宝协会 |
| JJA | just joking around | 只是开玩笑 |
| JJA | Johnson and Johnston Associates | Johnson和Johnston Associates |
| JJA | Josephson Junction Array | 约瑟夫森结阵列 |
| JJA | John Joseph Adams | 约翰·约瑟夫·亚当斯 |
| JJA | Jerry Jackson & Associates | 杰瑞·杰克逊和同事 |
| JJA | jejunojejunal anastomsis | 空肠肠吻合术 |
| JJA | Juvenile Justice Authority | 少年司法机构 |
| JJA | June, July, August | 六月、七月、八月 |
| JJA | John James Audubon (1785-1851) | 约翰·詹姆斯·奥杜邦（1785-1851） |