| Acronym | Definition |
|---|
| DAS | Department of Administrative Services |
| DAS | Direct Attached Storage |
| DAS | Distributed Antenna System |
| DAS | Distributed Annotation System |
| DAS | Data Acquisition System |
| DAS | Departamento Administrativo de Seguridad (Colombian police branch) |
| DAS | Deputy Assistant Secretary |
| DAS | Data and Applications Security |
| DAS | Data Analysis System |
| DAS | Decision Analysis Society |
| DAS | Days At Sea (fishing) |
| DAS | Data Analysis Software |
| DAS | Division of Apprenticeship Standards (California) |
| DAS | Delphi Automotive Systems |
| DAS | Daerah Aliran Sungai (river basin) |
| DAS | Differential Ability Scales |
| DAS | Dyadic Adjustment Scale |
| DAS | Device Access Software |
| DAS | Diversified Agency Services |
| DAS | Digital Audio System |
| DAS | Defense and Space |
| DAS | Diallyl Sulfide |
| DAS | Disability Assessment Schedule (World Health Organization) |
| DAS | Distributed Aperture System |
| DAS | Department of Applied Science |
| DAS | Data Access Server |
| DAS | Double After Split (blackjack) |
| DAS | Designated Alteration Station |
| DAS | Data Assimilation System |
| DAS | Defense Acquisition System |
| DAS | Driver Assistance System |
| DAS | Doctor-Assisted Suicide |
| DAS | Design and Access Statement (architectural planning; UK) |
| DAS | Dual Attached Station (FDDI) |
| DAS | Dial-A-Song (They Might Be Giants phone service) |
| DAS | Direct Air Support |
| DAS | Decimal Adjust for Subtraction |
| DAS | Disk Array Subsystem |
| DAS | Defensive Aids System (military aviation) |
| DAS | Digital Asset Server (Microsoft) |
| DAS | Dimer-Adatom-Stacking-Fault (semiconductor; surface science) |
| DAS | Data Acquisition Subsystem |
| DAS | Data Automation System |
| DAS | Directory Assistance System |
| DAS | Damage Assessment Strike |
| DAS | Digital Analysis System |
| DAS | Defense Attaché System |
| DAS | Director of the Army Staff |
| DAS | Dynamic Angle Spinning |
| DAS | Division for Aging Services |
| DAS | Direct Access Service |
| DAS | Domino Application Server |
| DAS | Data Acquisition and Signal Conditioning |
| DAS | Defensive Aids Suites |
| DAS | Direct Access System |
| DAS | Défense Automobile et Sportive (French: UK insurance company) |
| DAS | Delivery Area Surcharge |
| DAS | Demand Access System |
| DAS | Data Archive System |
| DAS | Dynamically Assigned Socket (Cisco) |
| DAS | Double-Acting Ship |
| DAS | Document Accessibility Services (Crawford Technologies) |
| DAS | Distributed Asynchronous Scheduler |
| DAS | Date Arrived Station |
| DAS | Demand Access Service |
| DAS | Development Application Support |
| DAS | Device Access Server (hardware interface) |
| DAS | Direct Access Server |
| DAS | Digital Avionics System |
| DAS | Dynamic and Sound (Valencia, Spain) |
| DAS | Defensive Avionics System |
| DAS | Directory Assistance Service (protocol) (RFC 1202) |
| DAS | Door Answering System |
| DAS | Defense Audit Service |
| DAS | Direct Access Subscriber |
| DAS | Digital Address System |
| DAS | Damage Avoidance System (science fiction) |
| DAS | Direct Archive System |
| DAS | Data Administration Program |
| DAS | Documentation Accountability Sheet |
| DAS | Dial-A-Sensor (ITT) |
| DAS | deep air support (USMC) (US DoD) |
| DAS | Density Analysis System |
| DAS | Defensive Aid Subsystem |
| DAS | Development Acceleration System (Adax) |
| DAS | Data Auxiliary Set |
| DAS | Deep Air Strike |
| DAS | Demand Assignment Signaling |
| DAS | DISN ATM Service |
| DAS | Distributed Administrative Support |
| DAS | Drive Around Shopping (VIMO) |
| DAS | Depression and Anxiety Syndromes |
| DAS | Dark Alliance Studios |
| DAS | Deflection Amplifier Subsystem |
| DAS | Days After Seeding/Sowing |
| DAS | Directory Analysis Specialist |
| DAS | Drunken Anarchists Society |
| DAS | Defense Accounting System |
| DAS | Defense Automated System (DOD supply/logistics source) |
| DAS | Deutscher Automobile Schutz (German: UK insurance company) |
| DAS | Delay-And-Sum Algorithm |
| DAS | Democratic Alliance of Socialists (Canada; founded in 1989) |
| DAS | Dialed Access Service |
| DAS | Digital Assignment System (Bellcore) |
| DAS | Deflection Amplifier Subassembly |
| DAS | Département d'Analyse de Sûreté (French: Department of Safety Analysis; nuclear energy industry) |
| DAS | Detector Array Subassembly |
| DAS | Disk-Assisted Search |
| DAS | Dante Alighieri Society (literary society; various locations) |
| DAS | Drug and Alcohol Services (various locations) |
| DAS | Department of Animal Services (various locations) |
| DAS | Delegated Administration Service (Oracle) |
| DAS | Digital Arts and Sciences (various schools) |
| DAS | Debit d'Absorption Spécifique (French: Specific Absorption Rate) |
| DAS | Délégation aux Affaires Stratégiques (French: Strategic Affairs Delegation) |
| DAS | Direction Agrément et Spécifications (French: Licensing and Specifications Directorate; Belgium) |
| DAS | Domain Administration Server (computing) |
| DAS | Domaines d'Activité Stratégique (French: Strategic Business Area) |
| DAS | Drug and Alcohol Screening (various organizations) |
| DAS | Dispositif Actionné de Sécurité (French security device) |
| DAS | Diploma of Advanced Studies (various locations) |
| DAS | Decision Analysis and Support |