OCCM
| 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 |