| 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 |