OHRA
| Acronym | Definition |
|---|---|
| OHRA | Open Hypermedia Reference Architecture |
| OHRA | Office of Reconstruction and Humanitarian Assistance (Iraq) |
| OHRA | Ontario Health Research Alliance (Canada) |
| OHRA | Olde Hanwell Residents Association (UK) |
| OHRA | Ontario Health Record Association (now Ontario Health Information Management Association; Canada) |
| OHRA | Ozarks Hunting Retriever Association (Arkansas) |
| OHRA | Occupational Health Risk Assessment Questionnaire |