CCN may refer to: In science and technology Cement chemist notation, developed to simplify the formulas used by cement chemists Cereal cyst nematode, a plant disease Corn cyst nematode, a plant disease Cerebrocortical necrosis, a nutritional brain disease of cattle Cloud condensation nuclei Content centric networking, approach to computer-networking architecture Controlled-Controlled Not Gate (also known as a Toffoli gate), a component of a reversible computer Cyclomatic Complexity Number, a software metric CCN protein, a family of proteins Critical care nursing
Organizations Cameron Chisholm Nicol, Australian architecture firm Camino Cristiano Nicaragüense, a Nicaraguan political party Caribbean Communications Network Ltd., a unit of ONE Caribbean Media Ltd. based in Trinidad and Tobago Chebucto Community Net in Halifax, Nova Scotia City College Norwich, a further education college in the United Kingdom Commission de la capitale nationale, Canadian Crown Corporation, known in English as the National Capital Commission, administrating federal properties in the region around Ottawa, Ontario and Gatineau/Hull, QC Companhia Colonial de Navegação, a former Portuguese shipping company Council of Churches in Namibia, an organization representing Christian churches in Namibia County Councils Network, the network of County Councils in England Covering Climate Now, a consortium of news organizations for news coverage of climate change
Other uses Comedy Central News, a TV show on the Dutch Comedy Central Concours Complet National, a national eventing competition (see Concours Complet International) Certified Clinical Nutritionist, see Nutritionist#United States Railway service code for Central Coast & Newcastle Line, New South Wales, Australia CMS Certification Number, a system for identifying healthcare providers in the United States