| Acronym | Definition |
|---|
| JET | Joint European Torus |
| JET | Journal of Educational Technology |
| JET | Just Enough Time |
| JET | Journal of Economic Theory |
| JET | Jitter Elimination Technology |
| JET | Jpeg Enhancement Technology |
| JET | Java Emitter Template |
| JET | Joint Engine Technology |
| JET | Java Extended Ticker |
| JET | Joint Engineering Team |
| JET | Joint Employment Test (assessment exam) |
| JET | Job Experience Training (various organizations) |
| JET | Job Evaluation Team (various organizations) |
| JET | Journal of Empirical Theology (Brill) |
| JET | Journal of Education for Teaching |
| JET | Journal of Educational Thought |
| JET | Joint Entrance Test |
| JET | Junior English Test (English as a foreign language qualification) |
| JET | Joint Engine Technology (Microsoft JET database engine) |
| JET | Java Emitter Template (computing) |
| JET | Junctional Ectopic Tachycardia |
| JET | Joint Environmental Toolkit |
| JET | Joint Evaluation Team |
| JET | Journal of Educational Television (now Journal of Educational Media) |
| JET | Journalists Environmental Association of Tanzania (Tanzania) |
| JET | Jason Eugene Terry (basketball player) |
| JET | Japan Exchange & Teaching program |
| JET | Japan Electrical Testing Laboratory (aka Dentori or T Mark, Approval of Electrical Products) |
| JET | Joint Expeditionary Team (US DoD) |
| JET | Joint Engagement Tool |
| JET | JOPES Editing Tool |
| JET | Junior Enlisted Travel (entitlement) |
| JET | Junior Engineer Trainee |
| JET | JARING Electronic Transaction |
| JET | Joint Engineering Taskforce (Japan) |
| JET | Just Enough Testing |
| JET | Joint Expeditionary Tasking (US DoD) |
| JET | Jeunes Enfants Travailleurs (French: Young Children Workers; Benin) |
| JET | Jeunes Etterbeekois Au Travail (French: Etterbeek Youth at Work; Belgium) |