| Acronym | Definition |
|---|
| HGAC➣Houston-Galveston Area Council (Texas) |
| HGAC➣Human Genetics Advisory Commission |
| HGAC➣Hiram G. Andrews Center (Pennsylvania Department of Labor and Industry; Harrisburg, PA) |
| HGAC➣Houston Global Awareness Collective (Texas) |
| HGAC➣High-Gain Adaptive Control (learning control system theory) |
| HGAC➣High Gain Antenna Calibration |