CCO or cco may refer to:

Look up CCO in Wiktionary, the free dictionary.

• Chief channel officer, the executive responsible for indirect revenue with a partner within an organization
• Chief commercial officer, the executive responsible for commercial strategy and development
• Chief communications officer, or sometimes, Corporate communications officer, the executive responsible for communications, public relations or public affairs or both
• Chief compliance officer, the executive responsible for compliance with regulatory requirements
• Chief content officer, the executive responsible for content in broadcasting
• Chief creative officer, the executive responsible for the creative team of a company
• Chief customer officer, the executive responsible for the total relationship with customers
• Chief culture officer, the executive position responsible for cultural alignment of a company, described in a 2009 book by Grant McCracken
• Civilian Communications Officer, a position in the Central Communications Command of London's Metropolitan Police Service
• Call centre, operator

• Cancer Care Ontario, the provincial agency responsible for improvement of cancer services in Ontario, Canada
• Catholic Christian Outreach, a Catholic campus ministry organization in Canadian universities
• Cayuga Chamber Orchestra, an orchestra based in Ithaca, New York
• Center for Contemporary Opera, an opera company based in New York City
• Chandigarh Comets, a hockey team in Chandigarh, India
• City Centre Offices, an English/German record label for electronic music
• Clear Channel Outdoor, an international outdoor advertising corporation
• Coalition for Christian Outreach, a Christian campus ministry organization in American colleges
• Coordinated Care Organization, a network created by the state of Oregon to integrate healthcare services and contain cost increases through improved quality of care
• Council-controlled organisation, a local government trading organization in New Zealand
• Royal Canadian College of Organists (formerly the Canadian College of Organists)

• Canadian Computing Olympiad
• Central compact object
• Combined cardiac output
• Constitutive role of communication in organizations, a theory describing the interaction of members of an organization
• Newnan–Coweta County Airport in Coweta County, Georgia
• Carolina, Clinchfield and Ohio Railway, owned by Clinchfield Railroad
• Cataloging Cultural Objects, a metadata standard developed by the Visual Resources Association
• Conservative Central Office, now the Conservative Campaign Headquarters of the British Conservative Party
• cco, the ISO 639-3 code for the Comaltepec Chinantec language
• M68 Close Combat Optic, referring to the Aimpoint CompM2 or its later version the Aimpoint CompM4

• C₂O, or dicarbon monoxide
• CC0 (the '0' is a zero), a Creative Commons tool for releasing material into the public domain
• Shishio Makoto, a character in the Rurouni Kenshin anime

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