MDR

MDR may refer to:

Biology

MDR1
, an ATP-dependent cellular efflux pump affording multiple drug resistance
Mammalian diving reflex
Medical device reporting
Multiple drug resistance, when a microorganism has become resistant to multiple drugs

Managed detection and response, a type of computer managed security service
Massive Data Repository
, a data storage facility for the United States' Intelligence Community
Sony MDR-V6, a line of studio headphones designed by Sony
Medical device reprocessing
Memory data register
, a hardware register where data to be transferred to/from memory are temporarily stored
Mental dead reckoning
Merchant discount rate
, dues, fees, assessments, network charges and mark-ups that merchants are required to pay for accepting credit and debit cards
Metadata registry, a central location in an organization where metadata definitions are stored and maintained in a controlled method
Metadata repository, a database created to store metadata
Mini D ribbon
, a cable connector type
Motion detection radar
Multifactor dimensionality reduction, an algorithm for detecting interactions
Desert Tech MDR, a bullpup rifle
MDR, programming language

Moldavian Democratic Republic, a state existing between 1917 and 1918, predecessor of modern Moldova
mdr is the ISO 639 language code for the Mandar language
M. D. Ramanathan (1923–1984), Indian singer known as MDR
Mandatory declassification review, part of the process of removing the classification of a document
Medical Device Regulation (EU2017/745), a 2017 European Union regulation covering medical devices
Mitteldeutscher Rundfunk, German public broadcaster
Mort de rire, a
French expression
for "dead of laughing" (equivalent to English LOL)
Mouvement démocratique républicain (Republican Democratic Movement), former political party of Rwanda
Major district road in the state of Andhra Pradesh, India
Movement for Democracy and Reconstruction, political party in Liberia
Main Development Region
, the area of the Atlantic Ocean in which the majority of its tropical cyclones form