| DISP | Dispersive Spectrometer | In English | |
| DISP | Draft International Standardized Profile | In English | → Standardization |
| DIT | Dynamic Integrated Test | In English | |
| DIT | Display Index Table | In English | |
| DIT | Data ID Table | In English | → Data |
| DITA | Darwin Information Typing Architecture | In English | |
| DIU | Digital Interface Unit | In English | → Human-computer interaction |
| DIU | Data Interface Unit | In English | → Human-computer interaction → Data |
| DIVX | Digital Video Experience | In English | → Telecommunications |
| DIY | Do It Yourself | In English | |
| DK | Dorling Kindersley | In English | → Graphic industries, printing, publishing |
| DK | Display Keyboard | In English | → Human-computer interaction |
| DKC | Design Knowledge Capture | In English | |
| DKUHD | Division of Kidney, Urologic, and Hematologic Diseases | In English | → Physiology → Blood and circulatory system → Pathology |
| DL | Drawing List | In English | |
| DLA | Disability Living Allowance | In English | → Social welfare |
| DLAT | Destructive Lot Acceptance Testing | In English | |
| DLB | Dementia with Lewy Bodies | In English | → Neurology |
| DLC | Delay Line Control | In English | |
| DLC | Direct Lift Control | In English | |
| DLD | Davies Laing & Dick College (www.dld.org) | In English | → Education |
| DLF | Digital Library Federation | In English | → Libraries → Organizations and associations |
| DLG | Directed Labelled Graph | In English | → Computer-based techniques |
| DLH | Direct Labor Hour | In English | → Labour, labour economics |
| DLM | Document Lifecycle Management | In English | → Document processing → Knowledge management |
| DLO | Director of Launch Operations | In English | → Spaceflight engineering, astronautics |
| DLPFC | Dorsolateral Prefrontal Cortex | In English | → Anatomy |
| DLSC | Defense Logistics Service Center | In English | → Maintenance and logistics → 355 |
| DLSM | Data Link Summary Message | In English | → Data |
| DLTR | Data Link Terminal Repeater | In English | → Data |
| DLTR | Data Link Transmission Repeater | In English | → Data |
| DM | Data Management | In English | → Data |
| DM | Docking Mechanism | In English | |
| DM | Docking Module | In English | |
| DM | Data Manager | In English | → Knowledge management |
| DM | Data Manual | In English | → Knowledge management |
| DM | Development Motor | In English | → Vehicle engineering |
| DMA | Drive Motor Assembly | In English | → Vehicle engineering |
| DMA | Direct Memory Access | In English | → Memories |
| DMA | Defense Mapping Agency | In English | → 355 |
| DMA | Data Management Assembly | In English | → Knowledge management |
| DMA | Data Management Administrator | In English | → Knowledge management |
| DMC | Data Management Computer | In English | → Knowledge management → Data |
| DMC | Direct Maintenance Cost | In English | → Prices → Maintenance and logistics |
| DMCF | Deservicing, Maintenance, and Checkout Facility | In English | → Maintenance and logistics |
| DMCM | Double-Density Modular Core Memory | In English | → Memories |
| DMCSEE | Drought Management Centre for South-Eastern Europe = CGSESE | Centre de Gestion de la Sécheresse pour l'Europe du Sud-Est | In French = FizTT | Fizika Tverdogo Tela | In Russian = Фтт | Физика твердого тела | In Russian |
In English | |
| DME | Directed Molecular Evolution | In English | → Biotechnology |
| DME | Distance Measuring Equipment | In English | |
| DME | Dynamic Mission Equipment | In English | |
| DMF | Depot Maintenance Facility | In English | → Maintenance and logistics |
| DMG | Data Management Group | In English | → Quality management |
| DMICB | Daily Mission Integration Control Board | In English | |
| DMIS | Data Management Information System | In English | → Knowledge management |
| DMJ | Defense Management Journal | In English | → Serial publications, periodicals → 355 |
| DML | Daughters of Saint Mary of Leuca | In English | → Roman catholic church |
| DML | Digital Mathematics Library | In English | → Libraries → Mathematics |
| DML | Data Manipulate Language | In English | → Programming languages → Data |
| DMP | DEU Message Processor | In English | → Hardware |
| DMP | Data Merger Processor | In English | → Data |
| DMP | Data Management Processor | In English | → Knowledge management → Data |
| DMP | Dimethyoxypropane | In English | → Chemistry → Chemical technology |
| DMP | Desert Margins Program | In English | → Development → Meteorology, climatology → Hydrology |
| DMS | Data Management System | In English | → Knowledge management → Data |
| DMS | Deliverables Management System | In English | → Management |
| DMS | Docking Mechanism Subsystem | In English | → Mechanical engineering |
| DMS | Design Management System | In English | → Management |
| DMS | Docking Module System | In English | → Mechanical engineering |
| DMS | Document Management System | In English | → Document processing → Knowledge management |
| DMSIF | DMS Integration Facility | In English | |
| DMSP | Defense Meteorological Satellite Program | In English | → Meteorology, climatology → Military engineering → Spaceflight engineering, astronautics |
| DMSP | Defense Meterological Satellite Program | In English | → 355 → Meteorology, climatology → Spaceflight engineering, astronautics |
| DMSS | Data Management System Simulator | In English | → Data |
| DMSS | Defense Meteorological Satellite System | In English | → Meteorology, climatology → Military engineering → Spaceflight engineering, astronautics |
| DMSSIM | DMS Simulation | In English | |
| DMT | Discrete MultiTone Modulation | In English | → Telecommunications |
| DMTF | Dual-Tone Multi-Frequency | In English | → Telecommunications |
| DMTF | Desktop Management Task Force | In English | → Computer science |
| DMTF | Distributed Management Task Force | In English | → Management |
| DMU | Digital Mock-Up | In English | → Computer-based techniques → Engineering, technology |
| DMU | Data Management Unit | In English | → Data |
| DN | Department of the Navy | In English | → 359 |
| DN | Discrepancy Notice | In English | |
| DNA | Defense Nuclear Agency | In English | → 355 → Nuclear technology |
| DNA | Deoxyribonucleic acid = ADN | Acidum deoxyribonucleinicum | In Latin = ADN | Acide désoxyribonucléique | In French = TDN | Trenkenn dizoksiribonukleek | In Breton = DNK | Deoxyribonukleová kyselina | In Czech = DNA | Deoksiribonuklea acido | In Esperanto |
In English | → Genetics → Biochemistry, biophysics |
| DNO | Descending-Node Orbit | In English | → Spaceflight engineering, astronautics |
| DNS | Departure Nuclear Stage | In English | → Nuclear technology |
| DNS | Domain Name System | In English | → Networks, communication |
| DOA | Date of Announcement | In English | |
| DOA | Department of Agriculture (www.usda.gov) | In English | → Central administration → Agricultural sciences |
| DOAMS | Distant-Object Attitude-Measuring System | In English | |
| DOB | 2,5-Dimethoxy-4-bromoamphetamine = DOB | 2,5-diméthoxy-4-bromoamphétamine | In French = DOB | 2,5-Dimethoxy-4-bromamphetamin | In German = ДОБ | 2,5-диметокси-4-бромоамфетамин | In Russian |
In English | → Pharmacology, toxicology |
| DOC | Department of Commerce (www.commerce.gov) | In English | → Central administration → Trade |
| DOC | Drift-Orbit Correction | In English | → Spaceflight engineering, astronautics |
| DOC | Direct Operating Cost | In English | → Prices |
| DOC | Dissolved Organic Carbon | In English | → Hydrology |
| DOD | Department of Defense | In English | → 355 |
| DODI | Department of Defense Instruction | In English | → 355 |
| DODISS | Department of Defense Index of Specifications and Standards | In English | → 355 → Standardization |
| DODSTP | Department of Defense Standard Satellite | In English | → 355 → Spaceflight engineering, astronautics |
| DOE | Department of Energy | In English | → Central administration → Energy economics |
| DOI | Descent Orbit Insertion | In English | → Spaceflight engineering, astronautics |
| DOI | Direct Orbit Insertion | In English | → Spaceflight engineering, astronautics |
| DOL | Department of Labor (www.dol.gov) | In English | → Central administration → Labour, labour economics |
| DOL | Discrete Output Low | In English | |
| DoLAEM | Dobrich Local Agency for Energy Management | In English | → Energy economics |
| DOLAP | Desktop On Line Analytical Processing | In English | → Knowledge management → Data |
| DOLCE | Descriptive Ontology for Linguistic and Cognitive Engineering | In English | → Computer science |
| DOM | Document Object Model | In English | → Data → Document processing |
| DOM | Development Operations Manager | In English | |
| DOMP | Days on the Market Property | In English | → Accommodation |
| DOMSAT | Domestic Satellite | In English | → Spaceflight engineering, astronautics |
| DOP | Date of Publication | In English | |
| DOP | Detailed Operating Procedure | In English | |
| DoP | Dynamics of Patterns | In English | |
| DOPA | Dihydroxophenylalanine | In English | → Medicine |
| DOPE | Dioleolylphosphatidylethanolamine | In English | → Biochemistry, biophysics |
| DOPS | Dual Optics Particle Spectrometer | In English | → Optics → Analytical chemistry |
| DOR | Date of Ratification | In English | |
| DOR | Differenced One-way Range | In English | |
| DORD | Deep Ocean Resources Development Company | In English | → Marine research, oceanography → Mining |
| DORIS | Determination of Orbit Radio Positioning Integrated from Shuttle | In English | → Telecommunications → Spaceflight engineering, astronautics |
| DoRIS | Donau River Information Services | In English | → Transport and postal services |
| DOS | Digital Operation System | In English | |
| DOS | Disk Operating System | In English | → Operating systems |
| DOT | Data Output Tape | In English | → Data |
| DOT | Dictionary of Occupational Titles | In English | → Labour, labour economics |
| DOT | Department of Telecommunications | In English | → Central administration → Telecommunications |
| DoT | Department of Transportation (www.dot.gov) | In English | → Central administration → Transport and postal services |
| DOT/CIAP | DOT Climatic Impact Assessment Program | In English | → Transport and postal services → Meteorology, climatology |
| DOVAP | Doppler Velocity And Position | In English | |
| DOVIDs | Diffractive Optical Variable Image Devices | In English | → Optics |
| DOW | Date of Withdrawal | In English | |
| DOWNVInD | Distant Offshore Wind farms with No Visual Impact in Deepwater | In English | → Energy economics |
| DP | Dermal papilla | In English | → Anatomy |
| DP | Delayed Procurement | In English | → 34745 |
| DP | Development Phase | In English | |
| DP | Data Product | In English | → Data |
| DP | Data Processor | In English | → Hardware → Data |
| DP | Data Processing | In English | → Data |
| DP | Differential Pressure | In English | |
| DP | Diametral Pitch | In English | |
| DP | Dew Point | In English | |
| DP | Design Proof | In English | |
| DP | Society of Devapriya Sisters | In English | → Roman catholic church |
| DP&S | Data Processing and Software | In English | → Software → Data |
| DP&SS | Data Processing and Software Subsystem | In English | → Software → Data |
| DPA | Destructive Physical Analysis | In English | → Applied sciences, technology |
| DPA | Division Planning Authorization | In English | |
| DPA | Data Processing Assembly | In English | → Data |
| DPA | Differential Power Analysis | In English | → Hardware |
| DPAS | Defense Priorities and Allocation System | In English | → 355 |
| DPC | Data Processing Center | In English | → Data |
| DPCL | Dedicated Payload Communication Link | In English | → Telecommunications |
| DPCS | Distributed Process Construction System | In English | |
| DPD | Data Procurement Document | In English | → Data |
| DPD | Direct Parcel Distribution | In English | → Transport and postal services |
| DPDM | Differential Pulse-Duration Modulation | In English | → Telecommunications |
| DPDO | Defense Property Disposal Office | In English | → 355 |
| DPDS | Distributed Processing Design System | In English | |
| DPFZA | Djibouti Ports and Free Zones Authority | In English | → 33972 |
| DPI | Dots Per Inch | In English | → Peripheral devices → Graphic industries, printing, publishing |
| DPI | Detail Program Interrelationship | In English | |
| DPM | Deputy Program Manager | In English | → Management |
| DPM | Drop Physics Module | In English | |
| DPM | Daughters of Presentation of Mary in the Temple | In English | → Roman catholic church |
| DPM | Dinamika i Prochnost' Mashin | In English | → Serial publications, periodicals → Engineering, technology |
| DPO | Days Past Ovulation | In English | → Gynaecology → Reproductive biology |
| DPOA | Detroit Police Officers Association | In English | → Associations → Police |
| DPP | Deployment/Pointing Panel | In English | |
| DPP | DTD (Document Type Definition) Pre-processor Parser | In English | → Data → Document processing |
| DPP | Decapentaplegic | In English | |
| DPR | Definition Phase Review | In English | |
| DPRK | Democratic People's Republic of Korea | In English | → Geography |
| DPRS | Docking Probe Retraction System | In English | |
| DPS | Data Processing and Software | In English | → Software → Data |
| DPS | Data Processing System | In English | |
| DPS | Department of Defense Project Specification | In English | → 355 → Military engineering |
| DPS | Descent Propulsion System | In English | → Spaceflight engineering, astronautics |
| DPS | Digital Processing System | In English | → Computer-based techniques |
| DPS | Direct Payment Solutions | In English | → Trade |
| DPS | Development Projects System | In English | → Development |
| DPS | Department of Public Safety | In English | → Central administration → Police |
| DPS | Division for Planetary Sciences | In English | → Planets and satellites |
| DPS | Digital Product Synthesis | In English | → Computer science |
| DPSD | Data Processing Systems Division | In English | → Software → Data |
| DPSK | Differential Phase Shift Keying | In English | |
| DPSS | Data Processing and Software Subsystem | In English | → Software → Data |
| DPSS | Data Processing Software System | In English | → Software → Data |
| DPSS | Data Processing Services Subsystem | In English | → Data |
| DPST | Double Pole, Single Throw | In English | |
| DPT | Design Proof Test | In English | |
| DPU | Data Processing Unit | In English | → Software → Data |
| DPU | Digital Processing Unit | In English | → Hardware |
| DQPSK | Differential Quaternary Phase Shift Keying | In English | |
| DR | Design Review | In English | |
| DR | Dispatch Reliability | In English | |
| DR | Development Right | In English | |
| DR | Disposition Record | In English | |
| DR | Disposition Report | In English |