GHA

GHA may refer to:

• Gha, a letter that has been used in various orthographies for Turkic languages
• Gha (Indic), a glyph in the Brahmic family of scripts
• Georgia Hospital Association
• Generalized Hebbian Algorithm, a learning rule for neural networks
• Glasgow Housing Association
• Glasgow Hutchesons Aloysians RFC, a rugby union club in Scotland
• Global hectare, a measurement of the average biocapacity of all hectare measurements of any biologically productive areas on the planet
• Global Hotel Alliance, alliance of independent hotel brands
• Good Homes Alliance, a group committed to promoting sustainable housing in the United Kingdom
• One of two titles in the Guitar Hero music video game series:
  • Guitar Hero: Aerosmith, a console video game
  • Guitar Hero Arcade, an arcade adaptation of the series
• Ghost Hunters Academy, the third spin-off of popular paranormal show Ghost Hunters
• Ghana, country in Africa
• Antwerp Port Authority, abbreviated as GHA in Dutch (Gemeentelijk Havenbedrijf Antwerpen)
• The Greenwich Hour Angle, in Astronomy the hour angle measured from the prime (Greenwich) meridian