OMSL
| Acronym | Definition |
|---|---|
| OMSL | Office of Mine Safety and Licensing (Kentucky) |
| OMSL | Oil Management Services Ltd. (Bermuda) |
| OMSL | Optimum Manufacturing Solutions Ltd. (British Columbia, Canada) |
| OMSL | Office of Medical Service Learning (Indiana University) |
| OMSL | Ottawa Mixed Softball League (Ottawa, Ontario, Canada) |
| OMSL | Old Mutual Securities Limited (UK) |