ADR

• Accident data recorder, or flight data recorder
• Adria Airways, an airline of Slovenia
• IATA airport code for Robert F. Swinnie Airport in Andrews, State of South Carolina, USA

• Applied Data Research, a large software vendor from the 1960s until the mid-1980s

• Action–domain–responder architectural pattern
• The adr microformat, part of the hCard microformat
• Advanced Digital Recording, a magnetic tape data storage format.
• Architectural decision record
• Asynchronous DRAM refresh, an approach for persistent memory found in some Intel Xeon processors

• Alter Der Ruine, an American powernoise music group
• Automated dialogue replacement, a post-production process in filmmaking

• Alternative dispute resolution
• American depositary receipt, a method of trading non-U.S. stocks on U.S. exchanges
• Average daily rate, a common lodging industry statistic

• Adiabatic demagnetization refrigeration
• Adrenodoxin-NADP+ reductase, an enzyme
• Adverse drug reaction
• Artificial disc replacement, a surgical procedure
• Astra Digital Radio, a digital radio transmission system

• Active debris removal, an action or policy for enhancing space transport safety
• ADR (treaty), a treaty governing transport of hazardous materials
• Airdrie railway station, United Kingdom
• Ardeer railway station, Melbourne

• AD Renting (cycling team), a Belgian professional cycling team that existed from 1987 to 1989
• Alan Docking Racing, British motor racing team
• Alberto Del Rio (born 1977), Mexican professional wrestler

• Académie de Roberval, a school in Montreal, Quebec, Canada
• Adonara language, a Central Malayo-Polynesian language of Indonesia
• ADR rose, a rose trial winner
• Alternative Democratic Reform Party, a political party in Luxembourg
• Australian Design Rules, a set of construction standards for road registered vehicles in Australia
• Automated Demand response (Auto-DR), the automation by electric grid utilities to curtail load for various cost savings strategies.
• Automotive dead reckoning, GNSS-assisted dead reckoning for vehicles
• Axiom of real determinacy
• Azerbaijan Democratic Republic (1918–1920), a precursor state to modern Azerbaijan

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