DR, Dr, dr, or variation, may refer to: Doctor (title), a person who has obtained a doctoral degree or a courtesy title for a medical or dental practitioner Businesses DR Handmade Strings, a manufacturer of guitar strings DR (broadcaster), a Danish government-owned radio and television public broadcasting company D/R or Design Research, a retail lifestyle store chain (1953–1978) DR Motor Company, an Italian automobile company Depositary receipt, negotiable financial instrument issued by a bank to represent a foreign company's publicly traded securities Deutsche Reichsbahn (East Germany), former German railway company Digital Research, a defunct software company Duane Reade, a New York pharmacy chain Ruili Airlines (IATA code DR), a Chinese airline Places Dominican Republic, a country on the eastern portion of the Caribbean island of Hispaniola Dadar railway station, Mumbai, India (Central railway station code) Science and technology Dead reckoning, the process of estimating a global position Demand response, a method of managing consumer consumption of electricity Disaster recovery, secondary site to switchover or failover to if the primary site does not survive Designated Router, a concept used in routing protocol OSPF Design rationale, an explicit documentation of the reasons behind decisions made when designing a system or artifact Digital radiography, a form of x-ray imaging, where digital X-ray sensors are used instead of traditional photographic film Dram, a unit of mass and volume Dynamic range, the ratio between the largest and smallest possible values of a changeable quantity, such as ind sound and light Dose–response relationship, describes the change in effect on an organism caused by differing levels of exposure Dreieckrechner, a German flight computer manufactured as of the 1930s (model DR2) and the 1940s (model DR3) Other uses Dalereckoning, a fictional numbering of years in the Forgotten Realms campaign setting of the Dungeons & Dragons game Data Room, a space used for housing data, usually of a secure or privileged nature Death row, a prison or section of a prison that houses prisoners awaiting execution Democratic Republic, designating a country that is both a democracy and a republic Derealization, an alteration in the perception of the external world such that it seems unreal Diário da República, the official gazette of the government of Portugal Disaster recovery, policies, tools and procedures for recovering IT or technology systems supporting critical business functions Douay–Rheims Bible, a translation of the Christian Bible Danganronpa, a video game series and anime commonly known by