| Term | Full Form | Category |
|---|---|---|
| OHMA | Occupational Health Medical Adviser | Others |
| OHMA | On Hold Messaging Association | Others |
| OHMA | Ontario Homeopathic Medical Association | Others |
| OHMA | Ontario Hotel and Motel Association | Others |
| OHMA | Open Heterogeneous Multiprocessor Architecture | Others |
| OHMA | Oral History Master of Arts | Others |