CSO

CSO or C.S.O. may refer to:

Human resources

• Chief Science Officer
• Chief Scientific Officer
• Chief Security Officer
• Chief Services Officer
• Chief Signal Officer (U.S. Army)
• Chief Strategy Officer
• Chief Sustainability Officer
• Sales manager (Chief Sales Officer)
• Combat Systems Officer (U.S. Air Force)
• Community Service Officer
• Court security officer (disambiguation)
• Police Community Support Officer

Organizations

Statistics

• Central Statistical Office (disambiguation)
• Central Statistical Organisation, India
• Central Statistics Office (disambiguation)
• Central Statistics Organization, Afghanistan
• Czech Statistical Office

Other organizations

• Chief Scientist Office of the Scottish government
• Civil Society Organization
• Coastal States Organization
• Conference of Solidarity Support Organizations

Symphony orchestras

• Canberra Symphony Orchestra
• Chicago Symphony Orchestra
• Christchurch Symphony Orchestra
• Cincinnati Symphony Orchestra
• Colorado Symphony Orchestra
• Columbia Symphony Orchestra
• Columbus Symphony Orchestra

Other

• .CSO, compressed file format for ISO disc images
• Bureau of Conflict and Stabilization Operations, at the U.S. Department of State
• Caltech Submillimeter Observatory, Mauna Kea, Hawaii
• Carbonyl sulfide
• Colour-separation overlay (chroma key)
• Combined sewer overflow
• Composante Spatiale Optique, a French spy satellite
• Compulsory Stock Obligation
• Counter-Strike Online, a 2008 video game
• Magdeburg-Cochstedt Airport in Saxony Anhalt, Germany (IATA airport code CSO)