| Abbreviation | Definition |
|---|---|
| JIS | Judicial Information Systems |
| JIS | Justice Informations Services |
| JIS | Justice Is Served |
| JISCR | Judicial Information System Committee Rules (court rules) |
| JIS-LINK | Judicial Information System |
| JIT | Joint Investigation Team |
| JIT | Joint Investigation Teams |
| JIT | Jury In Tow |
| Jj | judges/justices |
| JJ | Jungle Justice |
| JJ | Junior Justice |
| JJ. | Judges |
| JJAC | Justice for Jews from Arab Countries |
| JJAC | Juvenile Justice Advisory Committee |
| JJAM | Juvenile Justice Anger Management |
| JJAM | Juvenile Justice Association of Michigan |
| JJB | Jonkopings Juridiska Byra |
| JJB | Juvenile Justice Board |
| JJC | Juvenile Justice Center |
| JJC | Juvenile Justice Clearinghouse |