CSO

CSO is an abbreviation for:

Caltech Submillimeter Observatory, a telescope of Mauna Kea Observatory
Central Statistical Office, the predecessor organization of the British Office for National Statistics
Central Statistical Office, formerly known as the Central Statistical Agency of Ethiopia
Centre de sociologie the organizational, a research facility in the French Institut d' études politiques de Paris
Centre for Social Investment, interdisciplinary research center at the University of Heidelberg, see Centre for Social Investment
Chicago Symphony Orchestra in the United States
Chief Sales Officer
Chief Security Officer, in general the Group responsible for corporate security
Chief Scientific Officer, responsible in a company or in the university sector for research and development
Chief Strategy Officer, a group responsible for corporate strategy
Chief Support Officer
Christopher Symphony Orchestra in Stuttgart
Commonwealth Solar Observatory, former name of Mount Stromlo Observatory in Australia
Cycles Since Overhaul by accumulated time since the maintenance in aviation
Magdeburg-Cochstedt Airport, a commercial airport located in Saxony -Anhalt after the IATA code