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 Sociedade da Terra Redonda, a Brazilian atheist and critical thinking organization 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. Primarily used in software development. Other Short-term rental, self-contained apartment 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