GRG
GRG is an abbreviation for:
- Gerontology Research Group
- Law on structural reform in the health sector , see Abbreviations / Laws and Law
- Graf-Rasso-Gymnasium Fürstenfeldbruck in the district town of Fürstenfeldbruck, is the older of the two high schools in the city
- GRG Services Group , a Germany-wide operating group in the field of building cleaning