| Acronym | Definition |
|---|
| GHHC➣Greater Houston Horse Council (Houston, TX) |
| GHHC➣Georgetown Hockey Heritage Council (Canada) |
| GHHC➣Gulf Horizon Holding Company (now Safat Global Holding; Kuwait) |
| GHHC➣Goddard Hispanic Heritage Club (Goddard Space Flight Center; US NASA) |
| GHHC➣Glacier Hills Home Care (Ann Arbor, MI) |
| GHHC➣Grace Home Health Care |