Cin, CIn or CIN may refer to:

• Cervical intraepithelial neoplasia, the abnormal growth of cells on the surface of the cervix that could potentially lead to cervical cancer.
• Chromosome instability, a type of genomic instability
• Contrast-induced nephropathy, a form of kidney damage caused by exposure to medical imaging contrast material

• An object of the C++ Iostream header file (C-In).
• .cin, Cineon file format

• Convective inhibition, the amount of energy required to overcome the negatively buoyant energy the environment exerts on an air parcel
• Cosine integral, of which the standard mathematical symbol is "Cin"
• Chemical formula of Cyanogen iodide

• Werner Reichardt Centre for Integrative Neuroscience
• The ICAO-code of Constellation Airlines, a defunct Belgian airline
• Corporação Industrial do Norte, Portuguese-owned company that is the Iberian market leader for paint & coating products
• Chart Information Network, now known as the Official Charts Company
• Children in Need, an annual UK Telethon Fundraiser shown on the BBC
• The Crime & Investigation Network
• The Caribbean International Network (CIN TV)

• Cincinnati, Ohio
  • The Cincinnati Reds, the city's Major League Baseball team
  • The Cincinnati Bengals, the city's National Football League team
  • The Amtrak code for Cincinnati Union Terminal

• Kadir Cin (born 1987), Turkish volleyball player
• Miray Cin (born 2001), Turkish-German women's footballer
• Tice Cin (born 1995), British writer

• Barış Çin (born 1975), Turkish carom and artistic billards player

• Critical Information Needs, information that people need to live safe and healthy lives.
• Corporate Identification Number, a company identifier in India
• Craft Identification Number, a fourteen-digit identifier used for European marine vessels
• Card Identification Number
• Chibi North railway station, China Railway telegraph code CIN

• Qin (disambiguation), sometimes spelled "Cin"

This disambiguation page lists articles associated with the title Cin.
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