DIA or Dia may refer to: Government establishments. Defence Industry Agency, Turkey. Defense Intelligence Agency, United States foreign military intelligence agency. Defence Intelligence Agency (India) Indian foreign military intelligence agency. Defence Intelligence Agency (Nigeria) Defense Intelligence Agency (South Korea) Department of Internal Affairs, New Zealand public service department. Department of Indian Affairs, Canadian federal department. Direzione Investigativa Antimafia, an Italian law-enforcement agency. Organizations and businesses. Airports.
https://en.wikipedia.org/wiki/Dia