| Abbreviation | Definition |
|---|---|
| JFJ | Jamaicans for Justice |
| JFJ | Jewish Fund For Justice |
| JFO | Juvenile First Offender |
| JFS | Joint Favorable Substitute |
| JFV | Justice For Victims |
| JGL | Journal of Gender and Law |
| JIF | Juvenile Information Folder |
| JIMS | Justice Information Management System |
| JIS | Judicial Information Systems |
| JISCR | Judicial Information System Committee Rules (court rules) |
| JIS-LINK | Judicial Information System |
| JIT | Jury In Tow |
| Jj | judges/justices |
| JJ | Jungle Justice |
| JJ. | Judges |
| JJB | Jonkopings Juridiska Byra |
| JJC | Juvenile Justice Center |
| JJC | Juvenile Justice Commission |
| JJD | Joseph J. Deuhs, Jr., Attorney |
| JJD | Juvenile Justice Department |