| Acronym | Definition |
|---|
| MAAC | Metro Atlantic Athletic Conference |
| MAAC | Mid-Atlantic Area Council |
| MAAC | Midwest Athletes against Childhood Cancer (est. 1976) |
| MAAC | Metropolitan Area Advisory Committee (San Diego, CA) |
| MAAC | Model Aeronautics Association of Canada |
| MAAC | Manufacturing Assembly & Automation Center (General Motors) |
| MAAC | Manhattan Art & Antiques Center |
| MAAC | Maximum Ambient Air Concentration |
| MAAC | Mine Amphibious Auxiliary and Command (US Navy) |
| MAAC | Model Aviation Association of Canada |
| MAAC | Multiple-Access Adder Channel |
| MAAC | Marin Access Advisory Committee (California) |