| Acronym | Definition |
|---|
| HCAC➣Heartland Collegiate Athletic Conference |
| HCAC➣Health Care for All Colorado |
| HCAC➣Hackensack Cultural Arts Center (Hackensack, NJ) |
| HCAC➣Haywood County Arts Council (North Carolina) |
| HCAC➣Holy Cross Anglican Communion |
| HCAC➣Holy Cross Anglican Church (various locations) |