| Abbreviation | Definition |
|---|---|
| JJSC | Juvenile Justice System of Care |
| JJSD | Juvenile Justice Services Division |
| JJSI | Juvenile Justice System Improvement |
| JJSO | Juvenile Justice Support Office |
| JJSO | Juvenile Justice System Ordinance |
| JJWC | Juvenile Justice and Welfare Committee |
| JJWC | Juvenile Justice and Welfare Council |
| JJWC | Juvenile Justice Welfare Council |
| JJWC | Juvinille Justice welfare Council |
| JKN | Justice Knowledge Network |
| JLA | Justice League Aftermath |
| JLA | Justice League America |
| JLAF | Japan Lawyers Association for Freedom |
| JLCC | John Lilley Correctional Center |
| JLF | Japan Law Foundation |
| JLF | Jenkins Law Firm, PLLC |
| JLGL | Justice League Generation Lost |
| JLHS | Jonathan Law High School |
| JLI | Justice League International |
| JLM | Jailhouse Lawyer's Manual |