STR
STR, StR, Str or str may stand for:
- Short tandem repeat, in DNA testing
- Special Theory of Relativity, Einstein's theory
- S. T. Rajendar, a South Indian actor.
- String (computer science), in computing
- Steps To Reproduce, in computing, used in bug filing and testing
- Sort-Tile-Recursive an efficient and particularly effective method of bulk-loading an R-Tree
- United States Trade Representative, formerly known as a Special Trade Representative
- Stuttgart Airport, Germany
- Scuderia Toro Rosso, a Formula 1 racing team
- Suspicious Transaction Report, see: Currency Transaction Report
- Séminaire Saint-Joseph de Trois-Rivières, a school in Quebec
- Specialized Technology Resources, an American corporation
- Suspend to RAM, in computing
- Sociedade da Terra Redonda, a Brazilian atheist and skeptic organization
- Super Trucks Racing, a video game for the PlayStation 2
- An accepted abbreviation for Streptomycin, an antibiotic, in bacterial molecular biology
- Specialty Registrar (StR), a medical specialty title in the UK intended to replace SpR
- Office of the United States Trade Representative, known as the Office of the Special Trade Representative (STR) until 1979.