| Acronym | Definition |
|---|
| JAMS | Judicial Arbitration and Mediation Services, Inc. (retired judges and attorneys involved in conflict resolution) |
| JAMS | Justified Ancients of Mu Mu (band, see JAMMs) |
| JAMS | Java Mail Server |
| JAMS | Java Application Management System |
| JAMS | Japanese Association of Medical Sciences (est. 1902) |
| JAMS | Japan Association of Mineralogical Sciences (Tohoku University; Sendai, Japan) |
| JAMS | Journal of the American Musicological Society |
| JAMS | Journal of the American Mathematical Society |
| JAMS | Japanese Association of Mathematical Sciences |
| JAMS | John Adams Middle School (USA) |
| JAMS | Japanese Association for Mongolian Studies |
| JAMS | Job Access & Management System (batch job scheduling system) |
| JAMS | Jesus for All Minds |
| JAMS | Joint Adjudication Management System (US Navy) |
| JAMS | Japanese Animation and Manga Society (University of Lethbridge) |
| JAMS | JINTACCS Automated Message System |
| JAMS | Japanese Management Society |