| NAIA | A National Association Of Intercollegiate Athletics 
| Others |
| NAIA | Narcotics Allowed In Athletics
| Others |
| NAIA | National Animal Interest Alliance
| Others |
| NAIA | National Association for Intercollegiate Athletics
| Others |
| NAIA | National Association Intercollegiate Athletics
| Others |
| NAIA | National Association Of Independent Artists
| Others |
| NAIA | National Association of Ineligible Athletes
| Others |
| NAIA | National Association of Intelligent Aardvarks
| Others |
| NAIA | National Association of Intercollegiate Athletics
| Others |
| NAIA | National Association of Interscholastic Athletics
| Others |
| NAIA | Ninoy Aquino International Airport
| Others |
| NAIA | No Academic Information Available
| Others |
| NAIA | No Animals In Anguish
| Others |
| NAIA | North American Institute of Aviation
| Others |
| NAIA | Not Awed In Alohaland
| Others |