GHA or Gha may refer to:

Entertainment

• Ghost Hunters Academy, an American television series

Government

• Ghana Highways Authority

• Gibraltar Health Authority

• Wheatley Homes Glasgow (formerly "Glasgow Housing Association")

Language

• Gha, a letter used in various Turkic languages

• Gha (Indic), a glyph in the Brahmic family of scripts

• Ghadamès language, ISO 639-3 code

Sport

• Chabab Ghazieh SC, a Lebanese association football club

• Gibraltar Hockey Association

• Glasgow Hutchesons Aloysians RFC, a Scottish rugby union club

• Glenn Hoddle Academy, a British football academy

Other uses

• Georgia Hospital Association, an American trade association

• General History of Africa, a UNESCO project

• Generalized Hebbian Algorithm

• GHA Coaches, a former British bus operator

• Global hectare, in ecology

• Global Hotel Alliance

• Good Homes Alliance, UK

• Green Hills Academy, in Kathmandu, Nepal

• Greenwich hour angle

• Noumérat – Moufdi Zakaria Airport, serving Ghardaïa, Algeria, IATA code