NOC can refer to:

• National Occupational Classification
• National Oil Company, as opposed to IOC, which stands for International Oil Company
• National Oil Corporation the national oil company of Libya
• National Olympic Committee, a group eligible to enter athletes and teams into an Olympic Games
• Network On Chip, a term in Electronic System Design
• Network Operations Center, a term in computer networking that defines one or more locations from which control is exercised over a computer or telecommunications network, or part thereof.
• Non-official cover, an espionage and intelligence term
• Night of Champions, a bodybuilding contest held in New York
• Nippon Oil Corporation, a Japanese company
• Northrop Grumman, its stock symbol
• No overall control, a term used in the United Kingdom to refer to a situation analogous to a hung parliament, whereby no political party commands an absolute majority on a local council
• Nocturnal Sector, an area of the Biologic Space Laboratories in the video game Metroid Fusion
• Nantahala Outdoor Center, a river outfitter in western North Carolina.
• NOCH, also known as NOC, is a powerful and open source code molecular explorer
• Northern Oklahoma College, sometimes referred to as NOC, a community college located in Tonkawa, Oklahoma.

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