| Acronym | Definition |
|---|
| CTU➣Colorado Technical University |
| CTU➣Counter Terrorist Unit |
| CTU➣Clinical Trials Unit |
| CTU➣Czech Technical University in Prague |
| CTU➣Catholic Theological Union |
| CTU➣Consulente Tecnico d'Ufficio (Italian judicial technical consultant) |
| CTU➣Council of Trade Unions (New Zealand) |
| CTU➣Chicago Teachers Union |
| CTU➣Caribbean Telecommunications Union |
| CTU➣Counter Threat Unit |
| CTU➣Centre Thérapeutique Useldange (French: Useldange Therapeutic Center; Useldange, Luxembourg) |
| CTU➣Colorado Trout Unlimited |
| CTU➣Control Unit |
| CTU➣Chengdu, China (Airport Code) |
| CTU➣Cargo Transport Unit (shipping) |
| CTU➣Confederation of Trade Unions |
| CTU➣Cholera Treatment Unit (various locations) |
| CTU➣Counter Top Unit |
| CTU➣Computed Tomography Urogram (radiological procedure) |
| CTU➣Commander, Task Unit |
| CTU➣Counter Truancy Unit (Simpsons) |
| CTU➣Coiled Tubing Unit |
| CTU➣Centrale de Technologie Universitaire (French: Central University of Technology) |
| CTU➣Construction Time Use (Kone) |
| CTU➣Controlled Temperature Unit |
| CTU➣Central Terminal Unit |
| CTU➣Computer Training Unit |
| CTU➣Centre Théologique Universitaire (French: University Theological Center) |
| CTU➣Cabin Telecommunications Unit |
| CTU➣Computer Training Unlimited |
| CTU➣Chemistry/Toxicology Unit |
| CTU➣Conductor Tensioner Unit (oil industry) |
| CTU➣Comp Time Used |
| CTU➣Channel Test Unit |
| CTU➣Consolidated TOE Update |
| CTU➣Center for Teknologistøttet Undervisning (Danish National Centre for Technology Supported Learning) |
| CTU➣Centigrade Thermal Unit |
| CTU➣Central Timing Unit |
| CTU➣Cartridge Tape Unit |
| CTU➣Cancer Treatment Unit |
| CTU➣Command & Telemetry Unit |
| CTU➣Charging Time Unit |
| CTU➣Captive Test Unit |
| CTU➣Central Office Terminal Unit |
| CTU➣Conference on Transportation Unity |
| CTU➣Customer Termination Unit |