| Acronym | Definition |
|---|
| CCTB | Common Consolidated Tax Base (EU) |
| CCTB | Chicago Convention and Tourism Bureau |
| CCTB | Central Compilation and Translation Bureau (China) |
| CCTB | Carbondale Convention & Tourism Bureau (Carbondale, IL) |
| CCTB | Canadian Child Tax Benefit |
| CCTB | Club Cycliste des Toques Blanches (French cycling club) |
| CCTB | Cryogenic Component Testbed |
| CCTB | Communauté de Communes Tallard-Barcillonnette (French: Tallard-Barcelonnette Community of Communes; Tallard-Barcelonnette, France) |
| CCTB | California Central Trust Bank Corporation |
| CCTB | Close Combat Testbed |