| D/F- Verhältnis | Dampf-/Flüssigkeits-Verhältnis |
| DAB | Digital Audio Broadcasting |
| DAS | Digital Sound Adjustment |
| DBTDC | Degrees before Top Dead Center |
| DBV | Druckbegrenzungsventil |
| DC | Design Check / Direct Current |
| DC | Direct Current |
| DCS | Digital Cellular System |
| DDA | Digital Directional Antenna |
| DDS | Digital Diverstity System |
| Dea | Deutsche Erdöl Aktiengesellschaft |
| DEF | UK military specifications |
| def F | Degree Fahrenheit |
| Deg. CA | Degree Crank Angle |
| DEQ | Digital Equalizer |
| DFPM | Diagnose-Fehlerpfad-Management |
| DFS | Dauerfestigkeitsschaubild |
| DFV | Dampf-/Flüssigkeits-Verhältnis |
| DGL | Differenzialgleichung |
| DHK | Düsenhalterkombination |
| DI | Direct Injection |
| DI-Motronic | Motronic für Benzin-Direkteinspritzung |
| DigiCelver | Digital Receiver |
| DIN | Deutsches Institut für Normung |
| DK | Dielelektrizitätskonstante |
| DKA | Dorsselklappenansteller |
| DKG | Drossenklappengeber |
| DLC | Diamant-Like Coating |
| DLS | DoubleLayer Steel |
| DMB | Digital Multmedia Broadcasting |
| DME | Dimethylether |
| DMOS | Digital MOS Transistor |
| DMS | Dehnmessstreifen oder Dehnmesswiderstand |
| DMSB | Deutscher Motorsportbund |
| DMU | Digital Mock-Up |
| DNC | Dynamic Noise Covering |
| DOE | Design Of Experiments |
| DOF | Degrees of freedom |
| DOHC | Doubel Overhead Camshaft |
| DOS | Disk Operated System |
| DOT | Department of Transportation |
| DPE | Digital Parametric Equalizing |
| dpm | defects per million |
| DPNR | Diesel Particulate NOx Reduction |
| DPR | Dual Port RAM |
| DRAM | Dynamic RAM |
| DRM | Digital Radion Mondial |
| DRM | Druckregelmodul |
| DRO | Dielectric Resonance Oscillator |
| DS-L | Ladedrucksensor |
| DS-S | Saugrohrdrucksensor |
| DS-U | Umgebungsdrucksensor |
| DSCHED | Diagnose-Funktions-Scheduler |
| DSM | Diagnose-System-Management |
| DSP | Digitaler Signal-Prozessor |
| DSTN-LCD | Doppelschicht Twisted Nematic- |
| DSV | Drucksteuerventil |
| DTM | Deutsche Tourenwagen Masters |
| DUH | Depth under Head |
| DUT | Device Under Test |
| DVAL | Diagnose-Validator |
| DVB | Dekompressions Ventil Bremse |
| DVD | Digital Versatile Disc |
| DWS | Drehwinkelsensor |
| DWS | Dunlop Warnair System |
| DXM | Data Exchange Manager |
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