| Acronym | Definition |
|---|
| HHG | Household Goods |
| HHG | Heinrich Heine Gymnasium (German; various locations) |
| HHG | High Harmonic Generation (laser frequency conversion) |
| HHG | Hitchhikers Guide to the Galaxy (Douglas Adams) |
| HHG | Holy Hand Grenade |
| HHG | Huntington Municipal Airport (Huntington, IN) |
| HHG | Humco Holding Group, Inc. (Texarkana, TX) |
| HHG | Hypergonadotropic Hypogonadism |
| HHG | Hirners Hotel Guide (directory) |
| HHG | H. H. Gregg Appliances Inc. |
| HHG | Headquarters and Headquarters Group |
| HHG | Hot Hide Glue (woodworking) |
| HHG | Hoxne Heritage Group (UK) |
| HHG | Hitchhiker G1 (project carrier, space shuttle) |