Grk

Grk or GRK may refer to:


 * Grk, Serbia
 * G protein-coupled receptor kinase
 * Green Rock Energy, an Australian energy company
 * Grk Bijeli, a white grape variety
 * Grk book series, garages
 * Hellenic languages
 * Royal Gendarmerie of Cambodia
 * Killeen Regional Airport, in Texas, United States
 * Robert Gray Army Airfield