| Rank | Abbreviation | Meaning |
|---|
| ***** | AHAC | Amateur Hockey Association of Canada
| |
| ***** | AHAC | Asbestos Hazard Abatement Contractor
| |
| ***** | AHAC | American Home Assurance Company
| |
| ***** | AHAC | Area Health Advisory Councils
| |
| ***** | AHAC | American Helping Asian Children
| |
| **** | AHAC | American Heart Association Classification
| |
| **** | AHAC | Aboriginal Health Advisory Committee
| |
| **** | AHAC | Alberta Hydronics Advisory Council
| |
| **** | AHAC | Ancient and Honorable Artillery Company
| |
| **** | AHAC | Affordable Housing Advisory Committee
| |
| **** | AHAC | Alternative Healthcare Access Campaign
| |
| *** | AHAC | American Heart Association Council
| |
| *** | AHAC | Alamo Heights Aquatic Club
| |
| *** | AHAC | Affordable Housing Advisory Council
| |
| *** | AHAC | Aboriginal Health Access Centre
| |
| *** | AHAC | Affordable Housing Action Committee
| |
| *** | AHAC | Alternative Healthcare Access Campagin
| |
| *** | AHAC | Atlantic Highlands Arts Council
| |
| *** | AHAC | Audiology and Hearing Aid Center
| |
| *** | AHAC | Arne Hanna Aquatic Center
| |
| *** | AHAC | Arizona Historical Advisory Commission
| |
| ** | AHAC | Affordable Housing Advisory Commission
| |
| ** | AHAC | Adam's Hill Antiques & Collectibles
| |
| ** | AHAC | Ad Hoc Advisory Committee
| |
| ** | AHAC | Affiliated Housing Advisory Committee
| |