| CTT | Cable Television Toyama 
| Others |
| CTT | California Thoroughbred Trainers
| Others |
| CTT | Cambridge Touch Technologies
| Others |
| CTT | Carbon Track and Trace
| Others |
| CTT | Carminat Tom Tom
| Others |
| CTT | Cartridge Tape Transport
| Others |
| CTT | Catch Tuck Turn
| Others |
| CTT | Catchmark Timber Trust
| Others |
| CTT | Cellular Tracking Technologies
| Others |
| CTT | Cellular Transport Technology
| Others |
| CTT | Center for Technology Training
| Others |
| CTT | Center Tapped Terminated
| Others |
| CTT | Center Transformation Technique
| Others |
| CTT | Central Train Transport
| Others |
| CTT | Central Transmission Time
| Others |
| CTT | Centre des Tubercules Tropicaux
| Others |
| CTT | Centrul Tehnic Titu
| Others |
| CTT | Century T-Type
| Others |
| CTT | Certificate To Teach the
| Others |
| CTT | Certified Technical Trainer
| Others |
| CTT | Certified Technology Trainer
| Others |
| CTT | Character To Text
| Others |
| CTT | Character Translation Table
| Others |
| CTT | Charity Technology Trust
| Others |
| CTT | Chemistry Toxicity Test
| Others |
| CTT | Chest Tube Thoracic
| Others |
| CTT | China Taiwan Time
| Others |
| CTT | Cholesterol Treatment Trialists
| Others |
| CTT | Classical Test Theory
| Others |
| CTT | Clean Transportation Triangle
| Others |
| CTT | Clear To Transmit
| Others |
| CTT | Click To Type
| Others |
| CTT | Client Test Transfer
| Others |
| CTT | Clinical Trials of Texas
| Others |
| CTT | Clock Timer Thermostat
| Others |
| CTT | Club Time Trial
| Others |
| CTT | Clubsport Twin Turbo
| Others |
| CTT | Collaborative Translation Teaching
| Others |
| CTT | Colonic Transit Time
| Others |
| CTT | Color Trails Test
| Others |
| CTT | Columbia TriStar Television
| Others |
| CTT | Combi Terminal Twente
| Others |
| CTT | Combinatorial Topological Type
| Others |
| CTT | Combined Tire Technology
| Others |
| CTT | Command Team Trainer
| Others |
| CTT | Command Training Team
| Others |
| CTT | Commander's Tactical Terminal
| Others |
| CTT | Commercial Truck Trader
| Others |
| CTT | Commissione dei Trasporti e delle Telecomunicazioni
| Others |
| CTT | Commodities Transaction Tax
| Others |
| CTT | Commodity Transaction Tax
| Others |
| CTT | Common Task Test
| Others |
| CTT | Common Task Training
| Others |
| CTT | Common Test Training
| Others |
| CTT | Community Transition Team
| Others |
| CTT | Community Treatment Team
| Others |
| CTT | Compatibility Test Tools
| Others |
| CTT | Computational Technology Toolkit
| Others |
| CTT | Computed Tomography of The
| Others |
| CTT | Concur Task Tree
| Others |
| CTT | Concur Task Trees
| Others |
| CTT | Connection Traffic Table
| Others |
| CTT | Construction Trades Technology
| Others |
| CTT | Constructive Travel Time
| Others |
| CTT | Consumer Testing Technology
| Others |
| CTT | Contact List
| Others |
| CTT | Continue This Thread
| Others |
| CTT | Continuous Treatment Team
| Others |
| CTT | Contractor Technical Test
| Others |
| CTT | Conventional Travel Trailer
| Others |
| CTT | Copy To Texture
| Others |
| CTT | Correios
| Others |
| CTT | Cryptologic Technician Technical
| Others |
| CTT | Cultural Transformation Tools
| Others |
| CTT | Cup and Tourenwagen Trophy
| Others |
| CTT | Currency Transaction Tax
| Others |
| CTT | Currency Translation Type
| Others |
| CTT | Cyber Toothed Tigers
| Others |
| CTT | Cycling Time Trials
| Others |
| CTT | Cyprus Trade Tours
| Others |
| CTT | Cyril The Tosser
| Others |
| CTT | Cyrillic True Type
| Others |