| Acronym | Definition |
|---|
| HCOA➣Huffington Center on Aging (Houston, TX) |
| HCOA➣Homer Council on the Arts (Alaska) |
| HCOA➣Health Care of Australia |
| HCOA➣Handyman Club Of America |
| HCOA➣Hans Christian Owners Association (yachts) |
| HCOA➣Health Care Organization for Africa |