RW or rw may refer to:

In arts and entertainment

* ''The Real World'' (TV series), an American reality television show * '' Road Wild'', a World Championship Wrestling pay-per-view event * Robbie Williams, a British pop star * Robin Williams, an American actor *

Roger Waters George Roger Waters (born 6 September 1943) is an English musician, singer-songwriter and composer. In 1965, he co-founded the progressive rock band Pink Floyd. Waters initially served as the bassist, but following the departure of singer-so ...

, British musician * Robot Wars (disambiguation)

In mathematics, science and technology

In computing

* Read-write access to files or directories, in file system permissions * Read-write memory * Rewritable media * RenderWare, a 3-D rendering engine produced by Criterion Software

Other uses in mathematics, science, and technology

* Random walk, a mathematical process that can be used to explain phenomena in several disciplines *

Reaction wheel A reaction wheel (RW) is used primarily by spacecraft for three-axis attitude control, and does not require rockets or external applicators of torque. They provide a high pointing accuracy, and are particularly useful when the spacecraft must be ...

, a type of flywheel used primarily by spacecraft for attitude control * Robertson–Walker metric, in cosmology * Robin Wight, botanist, noted as R.W. * RW is the variable star designation, designation for the 15th variable star named in a constellation: ** RW Andromedae, a Mira variable located in the constellation Andromeda ** RW Cephei, an orange hypergiant located in the constellation Cepheus ** RW Cygni, a red supergiant located in the constellation Cygnus ** RW Ursae Minoris, a recurrent nova located in the constellation Ursa Minor * Right of way may be referred to in civil engineering and drafting contexts as R/W or RW

Other uses

* Racewalking * Real world, another term for reality in several contexts ** For other uses of "real world" see Real world (disambiguation) * Respondent witness, in law * Right-wing, one of the Winger (sports), winger positions in sport * Right-wing politics * Rosewood, a type of wood used for guitar fingerboards * ''Rukun warga'', an administrative division of Indonesia * Rwanda (ISO 3166-1 alpha-2 country code) ** .rw, country code top level domain (ccTLD) for Rwanda ** Kinyarwanda, a language in Rwanda (ISO 639 alpha-2 code) * Republic Airlines (IATA airline designator) * Royal Wings, a Jordanian airline {{disambiguation