OSAC
| Acronym | Definition |
|---|---|
| OSAC | Overseas Security Advisory Council (US State Department) |
| OSAC | Operator Services Assistance Center |
| OSAC | Oregon Student Assistance Commission |
| OSAC | Oregon Office of Student Access and Completion (Eugene, OR) |
| OSAC | Organization of Saskatchewan Arts Councils |
| OSAC | Overseas Schools Advisory Council |
| OSAC | Operational Support Airlift Command (United States Army) |
| OSAC | Oregon State Agricultural College |
| OSAC | Owen Sound Aquatic Club (ON, Canada) |
| OSAC | Ocean Surveillance Analysis By Computer |