GHHC
| 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 |