| HTH | A High Temperature Hose 
| Others |
| HTH | Hand To Hand
| Others |
| HTH | Hand to health
| Others |
| HTH | Handie Talkie Headset
| Others |
| HTH | Happy To Help
| Others |
| HTH | Have To Hurry
| Others |
| HTH | Heading To Hell
| Others |
| HTH | Heart To Heart dating service
| Others |
| HTH | Heart to Honduras
| Others |
| HTH | Heavy Transport Helicopter
| Others |
| HTH | Helix Turn Helix
| Others |
| HTH | Help The Handicapped
| Others |
| HTH | Help The Homeless
| Others |
| HTH | Here To Help
| Others |
| HTH | High Tail Hall
| Others |
| HTH | High Tail Hotel
| Others |
| HTH | High Tech High
| Others |
| HTH | High Test Hypochloride
| Others |
| HTH | High Test Hypochlorite
| Others |
| HTH | High Tide Height
| Others |
| HTH | Highway to Health
| Others |
| HTH | Highway To Hell
| Others |
| HTH | His(Her) Royal Highness
| Others |
| HTH | Hit The Hay
| Others |
| HTH | Hit The Highway
| Others |
| HTH | Hoffe Tzu Helfen
| Others |
| HTH | Hold The Horse
| Others |
| HTH | Holier Than Henry
| Others |
| HTH | Hollywood Tower Hotel
| Others |
| HTH | Hope That Helped
| Others |
| HTH | Hope That Helps
| Others |
| HTH | Hope That Hurts
| Others |
| HTH | Hope This Help
| Others |
| HTH | Horacio the hedgehog
| Others |
| HTH | Hotter than Hecuba
| Others |
| HTH | How The Heck
| Others |
| HTH | How the Hell
| Others |
| HTH | How The Hell?
| Others |