HAVOC
| Acronym | Definition |
|---|---|
| HAVOC | Handicapped Adults of Volusia County (advocacy organization; est. 1977; Volusia County, FL) |
| HAVOC | Humanity Against Victimization of Children |
| HAVOC | Harrisburg Area Volkswagen Owners Club (Harrisburg, PA) |
| HAVOC | Hammer and Anvils Various Occupations Club |