| Acronym | Definition |
|---|
| CSU➣Channel Service Unit |
| CSU➣California State University |
| CSU➣Colorado State University |
| CSU➣Chicago State University |
| CSU➣Columbus State University (Georgia) |
| CSU➣Charleston Southern University (Charleston, SC) |
| CSU➣Cleveland State University |
| CSU➣Charles Sturt University (New South Wales, Australia) |
| CSU➣Commissioning Support Unit (various organizations) |
| CSU➣Connecticut State University |
| CSU➣Christlich-Soziale Union (German: Christian Social Party) |
| CSU➣Colorado Springs Utilities |
| CSU➣Contacts of Structural Units |
| CSU➣Consejo Superior Universitario (Spanish: Superior University Council; various locations) |
| CSU➣Catanduanes State University (Philippines) |
| CSU➣Columbia Southern University |
| CSU➣Central State University (Ohio) |
| CSU➣Clayton State University (Morrow, GA) |
| CSU➣Cheng Shiu University (Taiwan) |
| CSU➣Cultures et Sociétés Urbaines (French: Urban Cultures and Societies) |
| CSU➣Control Service Units |
| CSU➣Customer Set up |
| CSU➣Central Support Unit |
| CSU➣Cumulative Security Update |
| CSU➣Community Services Unit (various organizations) |
| CSU➣Centre Sportif Universitaire (French: University Sports Center) |
| CSU➣Customer Service Unit |
| CSU➣Community Support Unit (various organizations) |
| CSU➣Crisis Stabilization Unit |
| CSU➣Crime Scene Unit |
| CSU➣Clinical Studies Unit (various organizations) |
| CSU➣Careers Services Unit |
| CSU➣Computer Software Unit |
| CSU➣Control Server for Unix (Cisco) |
| CSU➣Crime Suppression Unit |
| CSU➣Cagayan State University (Philippines) |
| CSU➣Customer Switching Unit (telecommunications) |
| CSU➣Cardiac Surgery Unit |
| CSU➣Customer Setup |
| CSU➣Civil Service Union (obsolete) |
| CSU➣Construction Sector Unit (UK) |
| CSU➣Ceiling-Suspended Unit (air conditioning) |
| CSU➣Chinese Student Union |
| CSU➣Circuit Switching Unit |
| CSU➣Chester Students' Union (Chester, UK) |
| CSU➣Customer Satisfaction Unit |
| CSU➣Child Support Unit |
| CSU➣Clearing-Staging Unit (National Disaster Medical System) |
| CSU➣Catheter Specimen of Urine |
| CSU➣Center for Spiritual Unfolding |
| CSU➣Coûts Salariaux Unitaires (French: Unit Wage Cost) |
| CSU➣Compaq Survey Utility (online information gathering) |
| CSU➣Casualty Staging Unit (US DoD) |
| CSU➣Casein Solubilization Units |
| CSU➣Cost Schedule Update (construction projects) |
| CSU➣Communications Switching Unit |
| CSU➣Channel Sharing Unit |
| CSU➣Capilano College Student Union |
| CSU➣Crime Statistics Unit (Tennessee) |
| CSU➣California South University |
| CSU➣Control Status Unit |
| CSU➣Channel Sending Unit |
| CSU➣Concentration Sending Unit |
| CSU➣Conventional Signals Upgrade |
| CSU➣Central Switch Unit |
| CSU➣Compact Sonar for U-Boats (Submarines) (German) |
| CSU➣Control Synchronization Unit |
| CSU➣Commissioning and Startup plan |
| CSU➣Containerized Shower Unit |
| CSU➣Clinical Specialties Unit (Duke University Hospital) |
| CSU➣Crew Station Unit (US DoD) |
| CSU➣Conventional Single-User (receiver type) |
| CSU➣Condensate Stabilization Unit (engineering) |
| CSU➣Christlich-Soziale Union in Bayern eV (German: Christian Social Union of Bavaria; political party; Germany) |