NAIA

Naia or NAIA may refer to:

Sports

 * National Association of Intercollegiate Athletics
 * NAIA Softball Championship
 * NAIA Volleyball Championship
 * NAIA World Series
 * NAIA Wrestling Championship
 * NAIA lacrosse

Other

 * Naia (skeleton), a Paleoamerican skeleton
 * National Animal Interest Alliance, an animal welfare organization in the United States
 * 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)