NK

NK may refer to:

• Nagorno-Karabakh
• Natural killer cell
• Neturei Karta, a group of anti-zionist orthodox Jews
• New Kingdom
• North Korea
• Northrup-King Seed Company
• Nippon Kaiji Kyokai
• Nordiska Kompaniet, a department store in Stockholm, Sweden
• North Kesteven
• Spirit Airlines, which has IATA code NK
• Imerys, which has the Euronext ticker code NK
• Nathan Kress, actor starring in iCarly and Gym Teacher: The Movie
• Neue Kerze aka new candle, an old photometric unit of luminous intensity

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