GHZ

GHZ or GHz may refer to:


 * Chabab Ghazieh SC, a Lebanese association football club
 * Gigahertz (GHz), unit of frequency
 * Greenberger–Horne–Zeilinger state, a specific entangled quantum state of three or more particles
 * GHZ experiment, an experiment associated with such a state
 * Galactic Habitable Zone, the region of a galaxy that is favorable to the formation of life
 * Green Hill Zone, the first level in Sonic the Hedgehog