| Abbreviation | Definition |
|---|---|
| HPTA | High Performance Tennis Academy |
| HPTC | Highland Park Tennis Club |
| HTA | Houston Tennis Association |
| HTRC | Hawkeye Tennis and Recreation Complex |
| HTTA | Hills Table Tennis Association |
| HTTA | Houston Table Tennis Association |
| HTTA | Hungarian Table Tennis Association |
| HTTC | Hampton Table Tennis Club |
| HTTC | Harvard Table Tennis Club |
| HTTC | Hillingdon Table Tennis Club |
| HTTC | Hinckley Town Tennis Club |
| HTV | Hamburger Tennis Verband |
| HWTA | Huntsville Womens Tennis Assn |
| ICTA | InterCounty Tennis Association |
| ICTC | Inner City Tennis Clinics |
| IETN | Intermediate Eastside Tennis Network |
| ILTF | International Lawn Tennis Federation |
| IPTL | International Premier Tennis League |
| ITA | Intercollegiate Tennis Association |
| ITC | International Tennis Centre |