OLES
| Acronym | Definition |
|---|---|
| OLES | Office of Law Enforcement Standards |
| OLES | Office of Literacy and Essential Skills (Human Resources and Skills Development Canada) |
| OLES | Open Label Extension Study (pharmaceutical research) |
| OLES | On-Line Executive Summit |
| OLES | One-Line Element Set |
| OLES | Olivocochlear Lateral Efferent System |