| Acronym | Definition |
|---|
| NAIA➣National Association of Intercollegiate Athletics |
| NAIA➣Ninoy Aquino International Airport (Metro Manila, Philippines) |
| NAIA➣National Animal Interest Alliance (animal welfare organization) |
| NAIA➣National Association of Independent Artists |
| NAIA➣National Abandoned Infants Assistance |
| NAIA➣National Alliance for Information Assurance |
| NAIA➣Northern Alabama Investigator's Association |