HHG
HHG may refer to:
- HHG Corporation, Extreme Championship Wrestling
- HHG Group, former name of Henderson Group, a global investment management company
- High-harmonic generation, a non-linear process during which a target is illuminated by an intense laser pulse
- The Hitchhiker's Guide to the Galaxy
- Household goods, a cargo shipping category
- Hungry, Hungry Ghost, a German band