JESS
| Acronym | Definition |
|---|---|
| JESS | Java Expert System Shell |
| JESS | Jobs and Employment Support Services (est. 1979; St. Louis, MO) |
| JESS | Java Enterprise Solutions Symposium |
| JESS | Joint Exercise Support System |
| JESS | Juneau Education Support Staff |
| JESS | Joint Exercise Simulation System |