ADR

ADR is a three-letter acronym that may refer to:
* Académie de Roberval, a school in Montreal, Canada
* short for "Accord européen relatif au transport international des marchandises dangereuses par route", also known as the European Agreement concerning the International Carriage of Dangerous Goods by Road
* Automated Dialogue Replacement, a form of Dubbing (filmmaking)
* Adiabatic Demagnetisation Refrigeration
* Adria Airways, an airline of Slovenia (ICAO code: ADR)
* Advanced Digital Radio Testing Service
* Advanced Dungeons & Rabbits, a Role Playing Game for phpBB
* Adverse drug reaction
* Airdrie railway station, United Kingdom (National Rail code: ADR)
* Alter Der Ruine, a power noise group from Tucson, Arizona
* Alternative Democratic Reform Party, a political party in Luxembourg
* Alternative dispute resolution
* American Depositary Receipt, a method of trading non-U.S. stocks on U.S. exchanges
* Andrews Municipal Airport, located in South Carolina (IATA code: ADR)
* Applied Data Research
* Artificial Disc Replacement
* Astra Digital Radio
* Australian Design Rules, a set of construction standards for road registered vehicles in Australia
* Automated Dialogue Replacement or Additional Dialogue Recording, also known as "dubbing"
* Average daily rate, a common lodging industry statistic
* Azerbaijan Democratic Republic

adr may also mean:

*The adr microformat, a sub-set of the hCard microformat.