Wikipedia
HSR
HSR may refer to:
- Haliburton Scout Reserve, a Scouts Canada camp
- Hamilton Street Railway
- Hart–Scott–Rodino Antitrust Improvements Act
- Health services research
- Henson Scout Reservation, a Boy Scouts of America camp in Maryland
- Hidden surface removal
- Hierarchical state routing
- High-availability Seamless Redundancy
- High school reunion
- High-speed rail
- Higher-speed rail
- Hisar Junction railway station, in India
- Historical Social Research
- Historic Sportscar Racing, a U.S. organization involved in historic motorsport
- Hochschule für Technik Rapperswil, a university St. Gallen, Switzerland
- Homestar Runner, an Internet cartoon
- Homogeneously staining region
- Horseshoe Scout Reservation, a Boy Scouts of America camp in Pennsylvania
- Hot Springs Municipal Airport, in South Dakota, United States
- Human subject research
- Human Sexual Response (band)
- Hungarian Soviet Republic
- Mitsubishi HSR, a concept car