Miscellanea
- NOC (whale), a beluga whale known for imitating human vocalizations
- National oil company, as opposed to IOC, which stands for International Oil Company
- Network Originality Competition, a nationwide student competition in China
- Non-official cover, an espionage and intelligence term
- No Objection Certificate
- No overall control, a British (United Kingdom) political term meaning no political party commands an absolute majority on a local council.
- National Occupational Classification, a Canadian classification system of occupations
- Nursing Outcomes Classification
- Nocturnal Sector, an area of the Biologic Space Laboratories in the video game Metroid Fusion
- Noć, a village in Poland
- Not otherwise classified, a designation for general worker's compensation codes indicating they are to be used only when no other more specific category applies
- Notice Of Change, such as for changing the destination for a shipment
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