| Abbreviation | Definition |
|---|---|
| GWM | Greener World Media |
| GWP | Gross Written Premium |
| GWTM | Good Will Toward Men |
| GWTR | Global Withholding Tax Reporter |
| GWTW | Gone With The Wind |
| H | Highlighted |
| HA | Heath Anthology |
| HAHN | Haves And Have Nots |
| HAL9000 | Heuristic Algorithmic Computer 9000 (2001 A Space Odessy) |
| HAM | Harvard Alumni Magazine |
| HAM | Home Automation Magazine |
| HANA | Highway Africa News Agency |
| HAT | History of Advertising Trust |
| HBK | HeartBreak Kid |
| HBO | Heavy Broadcast Overkill |
| HBO | Hollywood Beaten Out |
| HBO | Home Box Office |
| HBOF | Home Box Office Family |
| HBOO | Home Box Office Online |
| HBOP | Home Box Office Plus |