OHSA
| Acronym | Definition |
|---|---|
| OHSA | Occupational Health and Safety Act (various countries) |
| OHSA | Occupational Health Services Australia |
| OHSA | Occupational Health and Safety Agency (Health Canada) |
| OHSA | Occupational Health and Safety Association (various locations) |
| OHSA | Oxidized Human Serum Albumin (biochemistry) |