GCR
GCR is an abbreviation for:
- Galactic Cosmic Ray , see Cosmic Radiation #Classification and Origin
- Gas Cooled Reactor , see Magnox reactor
- Generalized Completely Continuous Representations , a type of C * algebra, see Postliminal C * algebra
- Global Competitiveness Report , ranking of economies with the highest growth opportunities
- Gray component replacement , four-color printing with achromatic structure, see achromatic structure
- Great Central Railway , British railway company
- Group Coded Recording , a recording method for magnetic data carriers
- Tianjin Airlines , Chinese regional airline (ICAO code)
