Rem or REM may refer to: Music R.E.M., an American rock band R.E.M. (EP), by the band Green "R.E.M." (song), by Ariana Grande Science and technology Rapid eye movement sleep, a phase of sleep Roentgen equivalent man (rem), a unit of radiation dose equivalent REM (BASIC), an inline comment (REMark) in BASIC and some other computer languages Rare-earth metal Reflection electron microscope Reticular erythematous mucinosis, a skin disease Root em, a font-size measurement used with Cascading Style Sheets Real ear measurement, measurement of sound pressure level in a patient's ear canal developed when a hearing aid is worn Organizations La République En Marche!, a French centrist political party Reichserziehungsministerium, in Nazi Germany, unofficially known as the Reich Education Ministry Reiss Engelhorn Museum, Germany Resource Extraction Monitoring, a UK-based non-profit organisation Rosicrucian Egyptian Museum, California, United States REM Island, an offshore platform and home of the pirate stations Radio and TV Noordzee People Jakob Rem (1546–1618), Austrian Jesuit Rem Koolhaas (born 1944), Dutch architect Rem Vyakhirev (1934–2013), Russian manager Rem, pen name of Priscilla Hamby, illustrator and comic book artist Fictional characters Rem, an android in Logan's Run Rem, in Dream Hunter Rem Rem Saverem, in Trigun Rem, in Bobobo-bo Bo-bobo Rem (Death Note), a Shinigami in Death Note Rem Kaginuki, a devil in Dance with Devils Rem (Re:Zero), a character in the light novel/anime series Re:Zero − Starting Life in Another World Rem Galleu, in How Not to Summon a Demon Lord Other uses Rém, a village in Hungary Réseau express métropolitain, Greater Montreal rapid transit system REM (Real Estate Magazine), Canada Rem (mythology), an Egyptian fish god See also REM World, a fantasy/science fiction novel by Rodman Philbrick Rems (disambiguation)