| Acronym | Definition |
|---|
| OLAC | Open Language Archives Community |
| OLAC | Open Language Archives Community (language resource; est. 2000) |
| OLAC | Online Audiovisual Catalogers |
| OLAC | Office of Laboratory Animal Care (University of California, Berkeley) |
| OLAC | Observatorio Latinoamericano de Censos de Población (Portuguese: Latin American Observatory of Population Censuses) |
| OLAC | Outdoor Lighting Application Center (Philips Electronics) |
| OLAC | Object-Level Access Control (computing) |
| OLAC | Open Learning Access Centre (Training and Employment Agency; Northern Ireland, UK) |