| Acronym | Definition |
|---|
| MIAA | Michigan Intercollegiate Athletic Association |
| MIAA | Mid-America Intercollegiate Athletics Association (formerly the Missouri Intercollegiate Athletic Association) |
| MIAA | Massachusetts Interscholastic Athletic Association |
| MIAA | Manila International Airport Authority (Manila, Philippines) |
| MIAA | Mortgage Industry Association of Australia |
| MIAA | Meetings Industry Association of Australia |
| MIAA | Materials Issues in Art and Archaeology |
| MIAA | Maryland Interscholastic Athletic Association |
| MIAA | Medical Industry Association of Australia |
| MIAA | Missouri Intercollegiate Athletic Association (now Mid-America Intercollegiate Athletics Association) |
| MIAA | Miniatures Industry Association of America |
| MIAA | Major Impact to All Army |
| MIAA | Member of the International Actuarial Association |