| Acronym | Definition |
|---|
| HTTA | Hybrid to the Antenna (wireless infrastructure) |
| HTTA | Hawaii Technology Trade Association |
| HTTA | Half-Time Teaching Assistantship (India) |
| HTTA | Houston Table Tennis Association (Texas) |
| HTTA | Header Tag Title All |
| HTTA | Honda Transverse Twins Association (motorcycle group) |
| HTTA | Heat Treatable Tungsten Alloy |
| HTTA | Haryana Table Tennis Association (India) |
| HTTA | Hellenic Table Tennis Association (Greece) |
| HTTA | Hawaii Table Tennis Association |
| HTTA | Hampshire Table Tennis Association (UK) |
| HTTA | Highway and Traffic Technicians Association |
| HTTA | Harlow Town Twinning Association (Harlow, Essex UK) |
| HTTA | Highways and Transportation Technicians Association (Hong Kong) |
| HTTA | How to Travel America (website and book) |
| HTTA | Highlands Trout Triangle Association (South Africa) |
| HTTA | Holier Than Thou Attitude |
| HTTA | Having Taken Title As (real estate transactions) |