Naia or NAIA may refer to:
Aviation
- North American Institute of Aviation, flight school in Conway, South Carolina
- Ninoy Aquino International Airport, serving Metro Manila, Philippines
- NAIA Expressway (E6)
- NAIA Road (N194)
Other
- National Association of Intercollegiate Athletics, college athletics association
- Naia (skeleton), a Paleoamerican skeleton
- National Animal Interest Alliance, an animal welfare organization in the United States
See also
- Naiad (disambiguation)