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; also can refer to the personnel working there
NOCH, also known as NOC, is a powerful and open source code molecular explorer
Miscellanea
National oil company, as opposed to IOC, which stands for International Oil Company
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