| Acronym | Definition |
|---|
| IMPAC | International Merchant Purchase Authorization Card |
| IMPAC | Intersegmental Major Preparation Articulated Curriculum |
| IMPAC | Information for Management, Planning, Analysis, and Coordination (National Institutes of Health) |
| IMPAC | Improved Management Productivity and Control |
| IMPAC | International Marine Project Activities Centre |
| IMPAC | International Merchant Purchase Authority Card |
| IMPAC | Internet Mail-Order Pharmacy Accreditation Commission |
| IMPAC | International Monitoring and Production Assistance Center |