| Acronym | Definition |
|---|
| JSO | Journal of Surgical Oncology (Wiley) |
| JSO | Jacksonville Sheriff's Office (Florida) |
| JSO | Johann Strauss Orchestra (est. 1987) |
| JSO | Job Specific Orientation |
| JSO | Just Starting Out |
| JSO | Just South Of (dispatch directions) |
| JSO | Joint Specialty Officer |
| JSO | Jewish Student Organization |
| JSO | Juvenile Sexual Offender |
| JSO | Joint Security Organisation (gaming) |
| JSO | Jefferson Symphony Orchestra (Golden, CO) |
| JSO | Joint Subcommittee on Oceans |
| JSO | Job Site Observation (construction) |
| JSO | Joint Staff Office/Officer |
| JSO | Joint Service Office |
| JSO | Jobs, Skills, and Organization |
| JSO | Junction South Of |
| JSO | Jahamariya Security Organization (Libyan security agency) |