| IDAC | I Don't Actually Care 
| Others |
| IDAC | Idaho Central Railroad (Boise Pacific Railroad)
| Others |
| IDAC | Image and Data Analysis Core
| Others |
| IDAC | Implant Disposable Antibacterial Coating
| Others |
| IDAC | Independent Damage Assessment Centres
| Others |
| IDAC | Infectious Disease Association of California
| Others |
| IDAC | Instituto Dominicano de Aviacion Civil
| Others |
| IDAC | Integrated Digital-Analog Converter
| Others |
| IDAC | Intelligent Data Access Controller
| Others |
| IDAC | Interaction Design and Children
| Others |
| IDAC | Interfaith Disability Advocacy Collaborative
| Others |
| IDAC | intermediate dose ARA C
| Others |
| IDAC | Internal Development Approvals Committee
| Others |
| IDAC | International Depositary Authority of Canada
| Others |
| IDAC | Iphone Driver Alert Control
| Others |