CSU
CSU may mean:
- A propeller's constant speed unit which regulates engine speed by automatically changing pitch
Any of the following universities or university systems
- Colorado State University (US public land grant university in Fort Collins, Colorado in the United States
- Cagayan State University system (Philippines)
- California State University system (United States)
- Central South University, Hunan (China)
- Central State University, Ohio (United States)
- Charles Sturt University, (Australia)
- Cleveland State University, Ohio (United States)
- Columbus State University, Georgia, (United States)
- Connecticut State University system (United States)
- Charleston Southern University Charleston, South Carolina (United States)
- Chicago State University Chicago, Illinois (United States)
Or:
- Channel service unit, a WAN equivalent of a network interface card
- Christian Social Union of Bavaria (Christlich-Soziale Union in Bayern), a political party in Bavaria, Germany
- Crime scene unit, in some police groups this refers to crime scene investigators who respond to a crime scene
- C Start Up, in computing, the initial start up code for compiled C (and C-based languages). See also CRT for C Run-Time.
- ČSÚ (Český statistický úřad), Czech Statistical Office[1] Archived 2011-01-29 at the Wayback Machine
- CSU is the ICAO airline designator for Chari Aviation Services, Chad
- CSU is the IATA airport code for Santa Cruz do Sul, Rio Grande do Sul, Brazil