OSAH
| Acronym | Definition |
|---|---|
| OSAH | Operational Support for AIDS Housing (New York) |
| OSAH | Office of State Administrative Hearings |
| OSAH | Office of School and Adolescent Health (New Mexico) |
| OSAH | Obstructive Sleep Apnea and Hypopnea |
| OSAH | Orchid Springs Animal Hospital (Winter Haven, FL) |