RS
RS may refer to:

Businesses and organizations
RS Group, entertainment & media company in Thailand
RS Group plc, British electronics & industrial distributor in England with brands including RS Components and RS Americas, Inc
RS Infotainment, Indian film production and distribution company
RS Productions, defunct Australian television and radio production company
Relief Society, an official auxiliary of The Church of Jesus Christ of Latter-day Saints (LDS Church)
République solidaire, a French political party
Roberval and Saguenay Railway (reporting mark RS)
Russian Party (Serbia) (Ruska stranka), a political party in Serbia

Sport
RS Sailing, an international designer and builder of sailboats and dinghies
Queens Park Rangers F.C., a professional football club from Shepherd's Bush, London, commonly nicknamed 'The Rs'

Places
Republic of Serbia (ISO 3166-1 code RS), country
Republic of Slovenia, country
Republika Srpska, one of the two political entities that compose the state of Bosnia and Herzegovina
Republika Srpska (1992–1995)
Rio Grande do Sul (ISO 3166-2 code BR-RS), Brazilian state

Science and technology
R/S classification, of the chirality of a molecule
RS, a class of racemic mixture
Radio Science, an instrument aboard MESSENGER space probe
Remote sensing
Risk and Safety Statements (R/S statements), a system of hazard codes and phrases for labeling dangerous chemicals

Biology and medicine
Resistant starch, indigestible starches (and sugars from starches)
Roemheld syndrome, a complex of gastrocardiac symptoms
Stomatal resistance (rs), of leaves
rs, prefix of a DbSNP record ID number e.g. rs206437
Respiratory syncytial virus, a species of virus

Computing
.rs, the internet country code top-level domain for Republic of Serbia
.rs, a filename extension for Rust source code
Recommended Standard (EIA), e.g. RS-232
Record Separator, in the C0 control code
Reed–Solomon error correction

Vehicles
Rally Sport, a designation applied to rallying cars
Rennsport (German for "racing sport"), a designation used for cars such as the Audi RS models
Porsche 911 Carrera RS
Porsche 911 GT3 RS
Ford Team RS, Ford Motor Company's European performance car and motorsport division
Renault Sport (R.S.), performance and motorsport division of automobile manufacturer Renault

Other uses
Pakistani rupee (plural currency symbol Rs)
RS (rapper) (2000–2019), Dutch drill rapper
Report Short, a type of US Congressional Research Service Report
Retail services specialist, an occupational rating in the U.S. Navy