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