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