JSU
| Acronym | Definition |
|---|---|
| JSU | Jackson State University (Jackson, MS, USA) |
| JSU | Jacksonville State University |
| JSU | Jewish Student Union |
| JSU | All Japan Seamen's Union |
| JSU | Juventudes Socialistas Unificadas (Spanish: Unified Socialist Youth) |
| JSU | Joint Strategy Unit (UK) |
| JSU | Japanese Society of Undergraduates (Massachusetts Institute of Technology; Boston, MA) |
| JSU | Joint Support Unit (UK Ministry of Defence) |
| JSU | Justice Statistics Unit (UK) |