| MDAC | Maryland Dental Action Coalition 
| Others |
| MDAC | Matrix Data Analysis Chart
| Others |
| MDAC | McDonnell Douglas Aerospace Corporation
| Others |
| MDAC | Memorandum for Departmental Action
| Others |
| MDAC | Mental Disability Advocacy Center
| Others |
| MDAC | Micorosoft Data Access Components
| Others |
| MDAC | Microsoft Data Access Component
| Others |
| MDAC | Microsoft Data Access Components
| Others |
| MDAC | Microsoft Data Access Controls
| Others |
| MDAC | Milton Disability Awareness Committee
| Others |
| MDAC | Mississippi Department of Agriculture and Commerce
| Others |
| MDAC | Moodle Development Advisory Committee's
| Others |
| MDAC | Multi disciplinary Assessment Center
| Others |
| MDAC | Multi-cultural Diversity Advisory Council
| Others |
| MDAC | Multiple Disciplinary Assessments Centre
| Others |
| MDAC | Multiple Dose Activated Charcoal
| Others |
| MDAC | Multiplying Digital to Analog Converter
| Others |
| MDAC | Multiplying Digital-to-Analog Converter
| Others |
| MDAC | Municipal Debt Advisory Commission
| Others |
| MDAC | Muscular Dystrophy Association of Canada
| Others |