| Acronym | Meaning |
| DTFBR | Draft Tube Fluidized Bed Reactor |
| DTG | Differential Thermogravimetry |
| DTGF | Double-time Green Function |
| DTGS | Deuterated Triglycine Sulfate |
| DTL | Drift Tube Linac |
| DTMR | Diffusion Tensor Magnetic Resonance |
| DTP | Developmental Therapeutics Program |
| DTP | Diphtheria |
| DTPA | Diethylenetriamine Pentaacetic Acid |
| DTPMP | Diethylenetriaminopenta(methylenephosphonic Acid) |
| DTR | Diffusion Transfer Reversal |
| DTRA | Defense Threat Reduction Agency |
| DTS | Diametral Tensile Strength |
| DTSC | Differential Temperature Scanning Calorimeter |
| DTUL | Deflection Temperature Under Load |
| DU | Dobson Units |
| DUT | Device Under Test |
| DUV | Deep Ultraviolet |
| DUVAS | Derivative Ultraviolet Absorption Spectrometer |
| DUVPL | Deep Ultraviolet Projection Lithography |
| DV-X(ALPHA) | Discrete Variational-x(alpha) (statistical Exchange Correlation) |
| DVB | Diagrammatic Valence Bond (in Study Of Electronic Properties) |
| DVC-FISH | Direct Viable Count-fluorescent In Situ Hybridization |
| DVD | Digital Video Disk |
| DVI | Dust Veil Index |
| DVM | Discrete Variational Method |
| DVMO | Directed-valence Molecular Orbital |
| DVR | Discrete Variable Representation (in Wave Function Calcn.) |
| DVR-REV | Discrete Variable Representation-ray Eigenvector |
| DVT | Deep Vein Thrombosis |
| DW | Dangerous Waste |
| DW | Dry Weight |
| DWA | Digital Waveform Acquisition |
| DWA | Distorted Wave Approximation |
| DWB2 | Second-order Distorted-wave Born |
| DWBA | Distorted-wave Born Approxn. |
| DWBA3(3DWBA) | Three-body Distorted-wave Born Approximation |
| DWBC | Deep Western Boundary Current |
| DWBE | Distorted-wave Born (approxn. With) Exchange |
| DWC | Deasphalted Whole Crude |
| DWCDS | Drinking Water Criteria Documents |
| DWDM | Dense Wavelength Division Multiplexing |
| DWE | Distorted-wave (approxn. With) Exchange |
| DWEL | Drinking Water Equivalent Level |
| DWES | Distorted-wave Energy Sudden (for Inelastic Mol. Collisions) |
| DWFBA | Distorted-wave First-order Born Approximation |
| DWIA | Distorted-wave Impulse Approximation |
| DWIOS | Distorted Wave Infinite Order Sudden Approximation |
| DWM | Distorted Wave Method |
| DWP | Dynamic Wet Pressure |