OISM
| Acronym | Definition |
|---|---|
| OISM | Oregon Institute of Science and Medicine |
| OISM | Osservatorio Italiano Salute Mentale (Italian: Italian Observatory for Mental Health; Italy) |
| OISM | Orthodox Inter-Seminary Movement |
| OISM | Ohio’s Integrated Systems Model for Academic and Behavioral Supports |
| OISM | Operations and Information Systems Management |