| Acronym | Definition |
|---|
| TCD | Trinity College Dublin |
| TCD | Chad (ISO Country code) |
| TCD | Transcranial Doppler |
| TCD | Thermal Conductivity Detector |
| TCD | Traffic Control Device |
| TCD | Tropical Conservation and Development |
| TCD | Transport de Chalands de Débarquement (French: Landing Ship Dock; French Navy) |
| TCD | Teller Cash Dispenser |
| TCD | Target Completion Date |
| TCD | Tons of Cane per Day (sugar cane industry) |
| TCD | Tapetochoroidal Dystrophy |
| TCD | Total Cost of Deployment |
| TCD | Theoretical Climate Dynamics |
| TCD | Time Code Display |
| TCD | The Cat's Dead |
| TCD | Target Configuration Date |
| TCD | Temperature Coefficients of Delay |
| TCD | Tanzania Centre for Democracy (est. 2005) |
| TCD | Traffic Class Dependent |
| TCD | Time/Code Distribution |
| TCD | Time Compliance Data |
| TCD | Target Center Display |
| TCD | Time Compliance Directive |
| TCD | Terminal Control Device |
| TCD | Turbo-Code Decoding |
| TCD | Technical Change Directive |
| TCD | Technical Concept Demonstration |
| TCD | Technology Cutoff Date |
| TCD | Tentative Classification of Defects |
| TCD | Target Centered Display |
| TCD | Type Commander Deviation |
| TCD | Test Criteria Document |
| TCD | Temporary Call Divert |
| TCD | Transient Current Distribution |
| TCD | The Captain's Deck (Tampa Bay Buccaneers fansite) |
| TCD | Trade Credit Distribution |
| TCD | Départment de la Coopération Technique (French) |
| TCD | Turning Circle Diameter (automotive design parameter) |
| TCD | Training Control Device |
| TCD | Tribal Center for Development (Philippines) |
| TCD | Technical Consulting & Development (National Institutes of Health) |
| TCD | Thermochromic Display |
| TCD | Total Control Dominator (automotive marketing software) |
| TCD | Transport Control Department (Bermuda) |
| TCD | Tactical Communications Division |
| TCD | Town Called Dobson (editorial cartoon) |