HGG
| Acronym | Definition |
|---|---|
| HGG | Human Gamma Globulin (serology) |
| HGG | Hypogammaglobulinemia (immunodeficiency disorder) |
| HGG | Hook Gang God |
| HGG | Hot Glue Gun (band) |
| HGG | Hitchhikers Guide to the Galaxy (book by Douglas Adams) |
| HGG | Hybrid Gel Grip |
| HGG | Heritage Golf Group (San Diego, CA) |
| HGG | Holy Ghost Girl (Canton Jones song) |
| HGG | Hofheimer, Gartlir and Gross, LLP (law firm; New York, NY) |