GHAA
| Acronym | Definition |
|---|---|
| GHAA | Group Health Association of America |
| GHAA | Greater Hartford Academy of the Arts (Hartford, Connecticut magnet high school) |
| GHAA | Greater Haverhill Arts Association (Haverhill, MA) |
| GHAA | Greater Houston Athletic Association (Houston, TX) |
| GHAA | Germantown Hills Athletic Association (Metamora, IL) |