CII

{{About|uppercase C, uppercase I, and uppercase I|uppercase C, uppercase L, and uppercase L|CLL (disambiguation)}}

CII or Cii may refer to:

• 102 (number) in Roman numerals
• Calculated Ignition Index, an index of the ignition quality of fuel oil
• Caldera International, Inc., a software company between 2001 and 2002
• Centro Intelligence Interforze, an Italian intelligence agency
• Chaîne d'Information Internationale, former name of TV station France 24
• Chartered Insurance Institute
• Children's Institute International, a child-abuse organisation in Los Angeles
• Coláiste Íde agus Iosef, a school in County Limerick, Ireland
• Colour Index International
• Compagnie internationale pour l'informatique, French computer manufacturer
• Computer-implemented inventions, see software patent
• Confederation of Indian Industry
• Construction Industry Institute
• Core Infrastructure Initiative, a project started by the Linux Foundation to fund critical open source projects
• Council of Islamic Ideology, Pakistan Government
• Cross Industry Invoice, a technical specification developed in UN/CEFACT for creating message syntax used in global exchange between trading partners
• George M. Low Center for Industrial Innovation, a research center at Rensselaer Polytechnic Institute