| Acronym | Definition |
|---|
| OSSM➣Oklahoma School of Science and Mathematics |
| OSSM➣On-Demand, Self-Service, Scalable, Measurable (cloud computing) |
| OSSM➣Oil Spill Simulation Model |
| OSSM➣One Sprint Systems Management |
| OSSM➣Open System Support Matrix |
| OSSM➣Organization of Social Studies Majors (University of the Philippines Diliman) |
| OSSM➣Orthodontic Society of Serbia and Montenegro |