HCOA
| 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 |