| Acronym | Definition |
|---|
| CTDC | Caribbean Tourism Development Company (Caribbean Tourism Organization and Caribbean Hotel Association) |
| CTDC | Clothing Technology Demonstration Centre Company Ltd. (est. 1990; Hong Kong) |
| CTDC | Ciprofloxacine/Tricalcium Phosphate Delivery Capsule (drug delivery system) |
| CTDC | California Truck Driving Championships (California Trucking Association) |
| CTDC | Continuous Transepidermal Drug Collection |
| CTDC | Contact Transscleral Diode Laser Cyclophotocoagulation (glaucoma treatment) |
| CTDC | Control Track Direction Computer |