HACCC
| Acronym | Definition |
|---|---|
| HACCC | Hawkeye Area Classic Chevy Club (Iowa) |
| HACCC | Houston Area Consortium of Career Centers (Texas) |
| HACCC | Hartford Area Child Care Collaborative (Connecticut) |
| HACCC | Housing Authority of the County of Contra Costa (California) |
| HACCC | Heroin Action Coalition of Carroll County (Maryland) |