CCN

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
• CYR61, CTGF, NOV, the first three proteins identified that belong to the "CCN" protein family - also see CCN intercellular signaling protein
• Critical care nursing

Organizations

• 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