Na

Na can refer to:

• Sodium, chemical element
• n/a, i.e. not applicable or not available
• The name of a tribal people of Arunachal Pradesh. See Nga people
• The name of a small ethnic group living in Yunnan and Sichuan Provinces in China. See Mosuo
• Na (tree), Mesua ferrea a tree native to Sri Lanka, India, southern Nepal, Indochina, and the Malay Peninsula.
• Na (surname), a Korean family name
• Na (kana), the な or ナ kana in the Japanese language
• Na (play), a play by the Indian playwright Anand Gandhi

NA may refer to

• Avogadro's number — abbreviated to N_A
• Namibia (ISO country code)
• Narcotics Anonymous
• One of several National Alliances
• National Association, the official designation of federally-chartered banks in the United States.
• National Association of Professional Base Ball Players (the sole professional "league" 1871-1875)
• National Association of Professional Baseball Leagues (minor league baseball since December 1901)
• Naturally-aspirated engine (Normally-aspirated engine)
• Naughty America — a pornography company in the United States
• New Africa — a North American Black nationalist group
• Neighborhood association (see neighbourhood)
• Neo-Aramaic languages
• Nestle-Aland
• Neurotics Anonymous
• Noradrenaline
• North America
• North American Airlines — IATA airline designator
• One of several Northern Alliances
• Nuclear Assault, band
• Nucleic acid
• Numerical aperture — a specification in optical systems
• The Virgin New Adventures series of Doctor Who novels
• Norfolk Academy
• N.A. was a Manhattan(New York) Nightclub, named after its owner Noel Ashman. The club is now closed and the space houses The Plumm. It was once the home of Nell's
• Province of Naples, a province of Italy

nA may stand for:

• Nanoampere, an SI unit of electric current (defined as 10⁻⁹ A)

See also

• Na Na
• Na Na Na Na Naa
• Hey Jude
• Land of a Thousand Dances