| Acronym | Definition |
|---|
| OLST➣Observatoire de Linguistique Sens-Texte |
| OLST➣Original London Sightseeing Tour (UK) |
| OLST➣One-Legged Stance Test (balance performance) |
| OLST➣Outdoor Leader Skills Training (Boy Scouts of America) |
| OLST➣Oregon Life Safety Team (Office of State Fire Marshal) |