NAA

NAA or Naa may refer to:

Businesses and organizations

Airports and aviation

• Narita International Airport Corporation, Japan
• Narrabri Airport (IATA code NAA), New South Wales, Australia
• National Aeronautic Association, US
• National Aviation Academy, training school in the US
• National aviation authority or civil aviation authority, in each country
• North American Airlines, founded 1989, ceased operations 2014
• North American Aviation, major US aerospace manufacturer from 1928 to 1967

In other fields

• National Academy of Arbitrators, US and Canada
• National Academy of Arts, Bulgaria
• National Anthropological Archives of the Smithsonian Institution, US
• National Archives of Australia
• National Assessment Agency, in the UK Department for Education and Skills
• National Association of Actors, a Mexican television and motion picture performers union
• National Auctioneers Association, US
• Newspaper Association of America, a trade association
• Nigerian Accounting Association
• North American Arms, an arms company

In science and technology

• 1-naphthaleneacetic acid, a synthetic auxin (organic compound and plant hormone)
• N-Acetylaspartate, a neurochemical often imaged in magnetic resonance spectroscopy
• Neutron activation analysis, a nuclear process used for determining the concentrations of elements in materials
• Nicotinamide, also called niacinimide, the amide of nicotinic acid
• No abstract available bias, an academic tendency to preferentially cite journal articles that have an abstract available online

Other uses

• Naa Govindasamy (1946–1999), Singaporean Tamil-language writer and computer font developer
• National Arabic Alphabets, in the Unicode standard
• VLF Transmitter Cutler (call-sign NAA), a radio station in Cutler, Maine, operated by the United States Navy