| HHH | Half Hollow Hills 
| Others |
| HHH | Handsome Hunky and Hilarious
| Others |
| HHH | Happy Healthy Holidays
| Others |
| HHH | Hardy Har Har
| Others |
| HHH | Harmony Humanism and High
| Others |
| HHH | Harmony Humanism and Hightechnology
| Others |
| HHH | Harmony Humanism High
| Others |
| HHH | Harmony of Human and High
| Others |
| HHH | Hash House Harriers
| Others |
| HHH | Haters Hate Harder
| Others |
| HHH | Hayes Healy Hurley
| Others |
| HHH | Head Head Head
| Others |
| HHH | Head Heart and Hands
| Others |
| HHH | Head Heart Hand
| Others |
| HHH | Head of Household
| Others |
| HHH | Head To Head To Head
| Others |
| HHH | Head, Heart, and Hands
| Others |
| HHH | Healthcare for the Homeless Houston
| Others |
| HHH | Healthy Harmonious Headstrong
| Others |
| HHH | Healthy Heart Hospital
| Others |
| HHH | Heavy Harness Horses
| Others |
| HHH | Hedonistic Honky Haters
| Others |
| HHH | Helen Hadley Hall
| Others |
| HHH | Hershey Handicap Help
| Others |
| HHH | Hilton Head Island, South Carolina USA
| Others |
| HHH | Hip Hop Heads
| Others |
| HHH | Hip Hop Hooray
| Others |
| HHH | His Helping Hands
| Others |
| HHH | Ho Ho Ho
| Others |
| HHH | Home Health and Hospice
| Others |
| HHH | Home Health Hub
| Others |
| HHH | Homelessness Housing And Hope
| Others |
| HHH | Homes that Help and Heal
| Others |
| HHH | Honda Hot Hatch
| Others |
| HHH | Hope This Helps
| Others |
| HHH | Horny Horny Horny
| Others |
| HHH | Horses Helping Humans
| Others |
| HHH | Hospital Hospitality House
| Others |
| HHH | Hot Hatch Heaven
| Others |
| HHH | Hot Hatch Hub
| Others |
| HHH | Hot Hatch Hunter
| Others |
| HHH | Hot Hot Heat
| Others |
| HHH | Hot Huge Hooters
| Others |
| HHH | Hot, High, and Hell
| Others |
| HHH | Hou Hsiao Hsien
| Others |
| HHH | Housing Housing Housing
| Others |
| HHH | Hubert H Humphrey
| Others |
| HHH | Hubert Horatio Humphrey
| Others |
| HHH | Hudson Hornet Hollywood
| Others |
| HHH | Huge Houmongus Honker
| Others |
| HHH | Humairah Highway Homestay
| Others |
| HHH | Hunter Hearst Helmsley
| Others |
| HHH | Hunter Huearst Helmsley
| Others |
| HHH | Hunters Heart Hurts
| Others |
| HHH | Hunters Helping the Hungry
| Others |
| HHH | Hybrid Hot Hatch
| Others |
| HHH | Hyperornithinaemia Hyperammonaemia Homocitrullinuria
| Others |
| HHH | Hyperornithinemia Hyperammonemia Homocitrullinuria
| Others |
| HHH | Hyundai Holding Hungary
| Others |
| HHH | Precompiled header file (Power C)
| Others |