| Acronym | Definition |
|---|
| IOSM➣Institute of Service Management (UK) |
| IOSM➣Interactive Oral Sensory-Motor (language therapy) |
| IOSM➣Inter-Operator Short Message (mobile technology) |
| IOSM➣Institute of Safety Management (South Africa) |
| IOSM➣Input-Output State Machine |
| IOSM➣Information Office of Shanghai Municipality |