CIO

CIO may refer to:

Organizations

Governmental organizations

• Central Imagery Office, an office of the US Department of Defense that was a predecessor of the National Geospatial-Intelligence Agency
• Central Intelligence Office, the national intelligence agency of the former South Vietnam
• Central Intelligence Organisation, the national intelligence agency of Zimbabwe
• Corruption Investigation Office for High-ranking Officials, a government agency of South Korea

Non-governmental organizations

• Centro de Investigaciones en Optica, a Mexican research centre in optics
• Charitable incorporated organisation, a form of legal entity for non-profit organizations in the United Kingdom
• Comité international olympique or International Olympic Committee, an international sports federation
• Congress of Industrial Organizations or Committee of Industrial Organization, a 1935–1955 national trade union centre that merged into the AFL-CIO
• Credit and Investments Ombudsman, an Australian dispute resolution service

Titles

• Chairperson-in-office, an official of a member state holding the presidency of an international organization
  • Commonwealth Chairperson-in-Office, an official of the Commonwealth of Nations
• Chief information officer, the head of information technology
• Chief innovation officer, the head of innovation, responsible for innovation management
• Chief investment officer, the head of investments

Other uses

• CIO (magazine), both print and online
• Concurrent input/output, a feature in the JFS file system
• Conventional International Origin, a conventionally defined reference axis of the pole's average location
• "Cry it out", an aspect of the Ferber method for solving childhood sleep problems
• City One station, Hong Kong, MTR station code

See also

• All pages with titles beginning with CIO
• All pages with titles containing CIO