RM

RM, rm, R.M. or R&M may refer to:

Arts and entertainment

 * RM (musician), born Kim Nam-joon, a South Korean rapper, composer and person who produces music
 * The R.M., a comedy film
 * Random map, a randomly generated map in strategy games
 * RauteMusik.FM, a German Internet Radio Station
 * Running Man, a variety show aired on South Korean television
 * Race Modification, a gameplay feature in the Gran Turismo series of video games

Companies

 * RM, a clothing line by Roland Mouret
 * RM Education, a British computer firm
 * RM Sotheby's, a classic car auctioneers
 * Récoltant-Manipulant, a designation for champagne producers with their own label
 * Reichle & De-Massari (R&M), a Swiss family tech business

Currencies

 * Malaysian ringgit, Malaysia (ISO 4217: )
 * Reichsmark (ℛℳ), German currency during the Weimar Republic and the Third Reich

Methods

 * Rapid manufacturing, computer-automated additive manufacturing method
 * Records management, an information archiving practice
 * Relationship marketing, in marketing jargon
 * Risk management, identification and prioritization of business risks

Military

 * Radioman, a rating for the United States Navy
 * Regia Marina, the Italian Navy prior to 1946
 * Royal Marines, the United Kingdom's amphibious forces

Countries

 * Republic of Macedonia (now North Macedonia)
 * Madagascar, per the UN Conventions on Road Traffic
 * Marshall Islands, per the American FIPS 10-4 standard
 * Moldova, an abbreviation of its official Romanian name Republica Moldova; also per the World Meteorological Organisation
 * Romania, per the Library of Congress

Forms of place

 * Ranch to Market Road, a designation for minor state highways in Texas, US
 * Rural municipality, a type of district in Canada

Locations in the United States

 * Richard Montgomery High School, Rockville, Maryland
 * Richmond, Virginia
 * Rocky Mount, North Carolina

Regions

 * RM postal area, the UK postcode area for Romford
 * Metropolitan City of Rome Capital, Italy (ISO 3166-2:IT code)
 * Province of Rome, Italy
 * Santiago Metropolitan Region of Chile (Región Metropolitana de Santiago)

Biology and medicine

 * Range of motion, or range of movement, the distance a joint can move between the flexed and extended positions
 * Recurrent miscarriage, referring to multiple consecutive miscarriages
 * Regenerative medicine, the process of replacing or regenerating human cells, tissues or organs to restore or establish normal function
 * Relative migration, in gel electrophoresis
 * Respiratory mechanics, the branch of human physiology focusing upon the bio-mechanics of respiration
 * Rhabdomyolysis, a condition in which damaged skeletal muscle tissue breaks down, potentially leading to kidney failure
 * Rhesus monkey, a species of Old World monkey native to South, Central and Southeast Asia
 * Rhinitis medicamentosa, or rebound congestion
 * Routine and microscopy, or urinalysis, an array of tests performed on urine

Computing

 * rm (Unix), a Unix command for the removal of files
 * RealMedia, a data format provided by RealNetworks
 * Relational Model, a database model based on predicate logic and set theory
 * Reset Mode (ANSI), an ANSI X3.64 escape sequence
 * Resource Management, a service in Asynchronous Transfer Mode (ATM) networks
 * Reuters Messaging, an instant messenger application

Physics

 * Faraday rotation measure, in astrophysics
 * Magnetic Reynolds number, a ratio used in magnetohydrodynamics
 * Molière radius (Rm), in high energy physics

Vehicles

 * AEC Routemaster, the traditional London bus
 * China Railways RM, a Chinese steam locomotive
 * SJ Rm, a Swedish locomotive
 * Rail Motor, a self-propelled rail car

Sport

 * One rep maximum, or 1RM, a weight training term
 * Real Madrid C.F., a Spanish football club

Titles

 * Radioman, a former rate of the U.S. Navy
 * Raksha Mantri, the defense minister of India
 * Registered Midwife, a legally registered or certified professional midwife
 * Reiki Master, one level of the three-tiered hierarchy of Reiki
 * Resident magistrate
 * Returned Missionary, a young Mormon who have served as a missionary

Other uses

 * Récoltant-Manipulant, champagne made by the winegrower
 * Reasoning Mind, an American school math initiative
 * Romansh language, spoken in Switzerland (ISO 639-1 code: )
 * Rosmah Mansor, wife of Malaysia Prime Minister Dato' Seri Najib Razak
 * Research Memo, a type of Congressional Research Service Report