ADR or adr may refer to: Computing Asynchronous DRAM refresh, an approach for persistent memory found in some Intel Xeon processors The adr microformat, part of the hCard microformat Architectural decision record Action–domain–responder architectural pattern Advanced Digital Recording, a magnetic tape data storage format. Science and medicine Adiabatic demagnetization refrigeration Adverse drug reaction Astra Digital Radio, a digital radio transmission system Artificial disc replacement, a surgical procedure Adrenodoxin-NADP+ reductase, an enzyme Transportation ADR (treaty), a treaty governing transport of hazardous materials Accident data recorder, or flight data recorder Active Debris Removal, an action or policy for enhancing space transport safety Adria Airways, an airline of Slovenia Airdrie railway station, United Kingdom Robert F. Swinnie Airport, South Carolina, United States, by IATA code Entertainment Automated dialogue replacement, a post-production process in filmmaking Alter Der Ruine, an American powernoise music group Companies Advanced Digital Radio Testing Service, Motorola's safety and compliance arm Applied Data Research, a large software vendor from the 1960s until the mid-1980s Sports Alan Docking Racing, British motor racing team Alberto Del Rio (born 1977), Mexican professional wrestler AD Renting (cycling team), a Belgian professional cycling team that existed from 1987 to 1989 Law and finance 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 Other uses 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 Automotive dead reckoning, GNSS-assisted dead reckoning for vehicles Azerbaijan Democratic Republic (1918–1920), a precursor state to modern Azerbaijan Automated Demand response (Auto-DR), the automation by electric grid utilities to curtail load for various cost savings strategies.