CTSU
| Acronym | Definition |
|---|---|
| CTSU | Clinical Trial Service Unit |
| CTSU | Cancer Trials Support Unit |
| CTSU | Coordination and Technical Support Unit (fisheries and aquaculture reconstruction; Sri Lanka; UN Food and Agriculture Organization) |
| CTSU | Counter Terrorism Support Unit (UK) |
| CTSU | Community Traffic Services Unit (Los Angeles Police Department; Los Angeles, CA) |
| CTSU | Contractor Traffic Simulation Unit (US FAA) |