RST may refer to:

Businesses and organisations Renault Sport Technologies, a former name of the motorsport vehicle division of Renault Rhodesian Selection Trust, a former Northern Rhodesian mining company Rosetta Stone (company) (NYSE stock ticker symbol), a language education software company Royal Society of Tasmania, a Tasmanian scientific organisation

Places Rochester International Airport, Minnesota, US (by IATA code) Royal Shakespeare Theatre, Stratford-upon-Avon, England

Science and technology Computing reStructuredText (file extension .rst), a lightweight markup language RST, the reset flag in the Transmission Control Protocol Intel Rapid Storage Technology, a computer storage technology Reverse semantic traceability, a software quality control method

Medicine and psychology Rapid strep test, for strep throat Reading span task, a memory span test Reinforcement sensitivity theory, a psychological theory

Other uses in science and technology R-S-T system (or RST code), a method of reporting radio signal quality RST model, a model of general relativity The reference, second, and third phases, in a three-phase electric system Nancy Grace Roman Space Telescope, a NASA infrared satellite telescope Rhetorical structure theory, a linguistic theory of text organization

Other uses Registered Safe Technician, a basic safe-cracking qualification Retail sales tax Romance Standard Time or Central European Time

See also