CSU may refer to:

Universities and university systems

United States

* Columbia Southern University, in Orange Beach, Alabama * California State University system * Colorado State University, in Fort Collins, Colorado * Connecticut State University System * Columbus State University, in Columbus, Georgia * Clayton State University, in Morrow, Georgia * Chicago State University, in Chicago, Illinois * Coppin State University, in Baltimore, Maryland * Cleveland State University, in Cleveland, Ohio * Central State University, in Wilberforce, Ohio * Charleston Southern University, in Charleston, South Carolina * Cardinal Stritch University, in Milwaukee, Wisconsin

Philippines

* Cagayan State University * Caraga State University system

Other countries

* Central Sanskrit University, New Delhi, India * Central South University, Changsha, Hunan, China * Charles Sturt University, Australia * Chelyabinsk State University, Chelyabinsk, Russia * Cheng Shiu University, Kaohsiung, Taiwan * Concordia Student Union, the organization representing undergraduate students at Concordia University in Montreal, Quebec, Canada

Organizations

* Christian Social Union (UK), an Anglican social gospel organisation * Christian Social Union in Bavaria, a political party in Bavaria, Germany * Civil Service Union, a defunct trade union in the United Kingdom * Český statistický úřad, Czech Statistical Office

Other uses

*Channel service unit, a Wide area network equivalent of a network interface card * Chari Aviation Services, Chad, by Airline codes-C, ICAO airline code * Chronic spontaneous urticaria, an autoimmune condition * Constant speed unit, a mechanical device on an aircraft propeller that regulates engine speed by automatically changing pitch * Crime Scene Unit, a forensic in some police groups this refers to Forensic science, crime scene investigators who respond to a crime scene {{Disambiguation