QR
The abbreviation QR stands for:
- Qatar Airways , as the airline's IATA code
- Quadratic reciprocity
- Quake Rally
- Qualitative reasoning
- Queensland Rail , Australian railroad company
- Queen's Rangers
- Quick release
- Quick Response, a two-dimensional barcode, see QR code
- Quiet Riot , hard rock band from California, USA
- QR decomposition or QR algorithm
- qR dimension , value for the edge steepness of the flanges of railroad wheels
- Quarter , a slang term for the American quarter dollar coin; see US dollars
- Quarter , various Anglo-American units of measurement
- Qatari Riyal (Qatar Riyal), the currency of the Gulf State of Qatar
- Nippon Cultural Broadcasting , inc., A radio station in Tokyo, Japan - JO QR
