| Acronym | Definition |
|---|
| OCCM➣Oslo Conference on Cluster Munitions (Norway) |
| OCCM➣Ocean Carbon Cycle Model |
| OCCM➣Open-Chest Cardiac Massage (cardiovascular medicine) |
| OCCM➣On Condition Cyclic Maintenance |
| OCCM➣Office of Commercial Communications Management |
| OCCM➣Optimistic Concurrency Control Mechanism |