STR

STR, StR, Str or str may refer to:

Organizations

 * Scuderia Toro Rosso, a Formula One motor racing team
 * Séminaire Saint-Joseph de Trois-Rivières, a school in Quebec
 * South Tynedale Railway, an English heritage railway
 * Specialized Technology Resources, an American corporation
 * STR, Inc hotel industry data company, formerly Smith Travel Research
 * Stranraer Harbour railway station code
 * Stuttgart Airport, Germany, IATA code

Science, medicine, and technology

 * Short tandem repeat or microsatellite, in a genome
 * Special Theory of Relativity
 * Specialty registrar (StR), UK medical title
 * Suspend to RAM, S3 power state in computing
 * Synchronous transmit-receive, an IBM communications protocol
 * Jaguar STR, a car
 * Sort-Tile-Recursive, bulk-loading method for an R-Tree data structure
 * str or STR, term for character string or function in some programming languages, see Comparison of programming languages (string functions)
 * Swedish Twin Registry, a registry of twins in Sweden established in 1961
 * Steps to reproduce, a sequence of actions that will reproduce a problem, typically used in debugging software

Other

 * Short-term rental, accommodation rented for short periods of time
 * Silambarasan Thesingu Rajendar, (born 1983), known as S.T.R., an Indian film director
 * Suspicious Transaction Report by a financial institution
 * .str, a video file included in a PlayStation (PS1) video game and contains a cinematic played in the game