| Acronym | Definition |
|---|
| DAR | Daughters of the American Revolution |
| DAR | Data At Rest |
| DAR | Disk Archive |
| DAR | Department of Agrarian Reform (Philippines) |
| DAR | Dial-A-Ride (senior program) |
| DAR | Display Aspect Ratio |
| DAR | Designated Airworthiness Representative |
| DAR | Decision Analysis and Resolution |
| DAR | Dar Es Salaam, Tanzania - International (Airport Code) |
| DAR | Defense Acquisition Regulation |
| DAR | Day-After Recall |
| DAR | Digital Audio Recorder |
| DAR | Digital Audio Radio |
| DAR | Daily Activity Report |
| DAR | Draft Assessment Report (European Food Safety Authority) |
| DAR | Dominion Atlantic Railway (Nova Scotia) |
| DAR | Diagnostic Assessment of Reading |
| DAR | Division of Animal Resources |
| DAR | Data Access Request |
| DAR | Data Acquisition Request |
| DAR | Dynamic Alternative Routing |
| DAR | Dressed All Round (grade of timber, where all sides are machined) |
| DAR | Data Analysis Report |
| DAR | Data Address Register |
| DAR | Driving After Revocation (citation) |
| DAR | Darier-White Disease |
| DAR | Digital Array Radar |
| DAR | D'Arianne Resources Inc (Chicoutimi, QC, Canada) |
| DAR | Digital Assets Repository |
| DAR | Digital Anti-jam Receiver (GPS) |
| DAR | Dynamic Adaptive Routing (Cisco) |
| DAR | Design Approval Representative (transit; Canada) |
| DAR | Dry Adiabatic Rate (meteorology) |
| DAR | Data Access Register |
| DAR | Deviation Approval Request |
| DAR | Data Aided Receiver |
| DAR | Defense Acquisition Radar |
| DAR | Disc Area Ratio |
| DAR | Distortion Adaptive Receiver |
| DAR | Data Acquisition Recording |
| DAR | Digital Aids Recorder (Airbus Industrie) |
| DAR | Damage Assessment Routines |
| DAR | Data Automation Requirement |
| DAR | Drawing Analysis Record |
| DAR | Disabled Aircraft Recovery |
| DAR | Damned Average Raiser (testing) |
| DAR | Designated Area of Recovery (combat search and rescue) |
| DAR | Dynamic Address Resolution (Cisco) |
| DAR | Digital Autopilot Requirements |
| DAR | Dielectric Absorption Rate |
| DAR | Document Approval and Release |
| DAR | Département d'Anesthésiologie et de Réanimation (French: Department of Anesthesiology and Intensive Care; Hospital Center of Valais; Valais, Switzerland) |
| DAR | Design Assessment Report |
| DAR | Double Address Rate |
| DAR | Deviation Authorization Request |
| DAR | Direct Assistance Request |
| DAR | Domestic Animals Registries Inc |
| DAR | Distributed Array Radar |
| DAR | Defect Analysis Report (software development) |
| DAR | Dryer, Compressed Air, Refrigerated |
| DAR | Declassification Areas |
| DAR | Data Automation Request |
| DAR | Direct and Alternate Route |
| DAR | Detector-Array Receiver |
| DAR | Division of Accounting and Reporting (California) |
| DAR | Dorsal Acetabular Rime |
| DAR | Data Acquisition Requirement |
| DAR | Deutscher Akkreditierung Rat |
| DAR | Dirección de Acueductos Rurales (Spanish: Direction of Rural Aqueducts; Nicaragua) |
| DAR | Direct Autumn Release (whooping cranes) |
| DAR | Direction des Achats Responsables (French: Purchasing Department Heads; University of Versailles Saint-Quentin-en-Yvelines) |
| DAR | Disbursement Authorization Request |
| DAR | Dignité, Apaisement et Réconciliation (French: Dignity, Appeasement and Reconciliation) |
| DAR | Département d'Anesthésie-Réanimation (French: Department of Anaesthesiology and Intensive Care; various organizations) |