| Acronym | Definition |
|---|
| CTB | Council Tax Benefit (UK) |
| CTB | Código de Trânsito Brasileiro (Portuguese: Brazilian Traffic Code) |
| CTB | Commonwealth Transportation Board (Virginia Department of Transportation) |
| CTB | Coopération Technique Belge (French: Belgian Technical Cooperation) |
| CTB | Community Tool Box (various organizations) |
| CTB | Cement Treated Base |
| CTB | Create This Book (series) |
| CTB | Communication Tool Box |
| CTB | Cipher Type Byte |
| CTB | Comprehensive Test Ban |
| CTB | Composite Triple Beat |
| CTB | Citybus (Hong Kong) |
| CTB | Child Tax Benefit (Canada) |
| CTB | Check-The-Box (US IRS) |
| CTB | Compagnie des Transports de Bourges (French transportation company) |
| CTB | Ceylon Tourist Board (Ceylon, Sri Lanka) |
| CTB | Convention Tourism Bureau (various locations) |
| CTB | Centre Théâtral du Bourget (French theater association) |
| CTB | Cholera Toxin Subunit B (also seen as CTXB) |
| CTB | Color Temperature Blue |
| CTB | Counter Terrorism Bureau |
| CTB | Conseil en Techniques du Bâtiment (French: Technical Building Council) |
| CTB | Centre Technique du Bois (French) |
| CTB | Consumer Taxation Branch (Canada) |
| CTB | Change the Bank |
| CTB | Cadbury Trebor Bassett (confections; UK) |
| CTB | Cut Bank, Montana (airport code) |
| CTB | Charpentes et Traditions Bois (French: Carpentry and Wood Traditions) |
| CTB | Catch the Bus (commit suicide) |
| CTB | Ceylon Transport Board (now Sri Lanka Central Transport Board; public transit) |
| CTB | Cyclotouristes Belfortains (French cycling club) |
| CTB | California Technical Bulletin |
| CTB | Collegetown Bagels (Ithaca, NY) |
| CTB | Courtage Technique du Bâtiment (French: Technical Brokerage Building) |
| CTB | Copieurs Télécopieurs Bureautique (French: Office Copiers Fax Machines) |
| CTB | Citicorp Trust Bank |
| CTB | Customer Technical Bulletin (various companies) |
| CTB | Change the Business |
| CTB | Cut-Throat Bitch |
| CTB | Cars, Trucks, Buses (Phish song) |
| CTB | Cargo Transfer Bag (NASA) |
| CTB | Half Countercurrent Tank (separators) |
| CTB | Creative Tampa Bay (Tampa Bay, FL) |
| CTB | California Testing Bureau |
| CTB | Clear to Build |
| CTB | Craig Thatcher Band |
| CTB | Concrete Traffic Barrier |
| CTB | Combat Trauma Bag |
| CTB | Capture the Bag (gaming) |
| CTB | Capture the Briefcase (gaming modification of Action Quake2) |
| CTB | Combined Targeting Board |
| CTB | Central Thermal Bus |
| CTB | Cache Transfer Bus |
| CTB | Central Tape Bus |
| CTB | Carrying the Banner |
| CTB | Central Texas Basketball |
| CTB | Cease to Breathe |
| CTB | Cary Town Band |
| CTB | Colonie Town Band |
| CTB | Ceramic Technology Berlin GmbH (Berlin, Germany) |
| CTB | Carlisle Town Band (Carlisle, PA) |
| CTB | Conduit Training Barge |
| CTB | Commercial Traffic Bulletin |
| CTB | Command Training Brief |
| CTB | Consolidated Trial Balance |
| CTB | Conventional Tapered Beamformer |
| CTB | Consolidated Test Bed |
| CTB | Communications Test Bed |
| CTB | Certified Texas Bred (Texas bred and produced show pigs) |
| CTB | Common Track Block |
| CTB | Certified Tissue Bank |
| CTB | Centralized Tank Battery (group of tanks located around oil fields) |
| CTB | Computerized Tomography-Brain (radiology) |