| Acronym | Definition |
|---|
| JES | Java Enterprise System (Sun) |
| JES | Journal of Environmental Sciences (est. 1989; bimonthly journal) |
| JES | Japan Ecotourism Society |
| JES | Jet Energy Scale (physics) |
| JES | Japan Elevator Service |
| JES | Johnson Elementary School (various schools) |
| JES | Japan Expo Sud (France) |
| JES | Java Enterprise System |
| JES | Java Embedded Server |
| JES | Job Entry Subsystem |
| JES | Jewish Educational Services (Atlanta, GA) |
| JES | Japan Ergonomics Society (International Ergonomics Association) |
| JES | Japan Epilepsy Society |
| JES | Job Evaluation Scheme (UK) |
| JES | Journal of Ethnic Studies |
| JES | Joint Examination Scheme (accounting) |
| JES | Jordan Environment Society |
| JES | Java Embedded Server (Sun) |
| JES | Job Entry System |
| JES | Journal of Ecumenical Studies (Temple University; Philadelphia, PA) |
| JES | Japan Endovascular Symposium |
| JES | Japanese Engineering Standard |
| JES | Joint Engagement Sequence |
| JES | Java Enterprise Simulator |
| JES | Japan Emigration Ship (est. 1963) |
| JES | John Ericsson Society |
| JES | Job Element Sheet |
| JES | Joint Tactical Information Distribution System Environment Simulator |
| JES | Jammer Effectiveness Study |
| JES | Java Enhanced SIP (Session Initiation Protocol) (IETF proposal) |