| Acronym | Definition |
|---|
| HCOC➣Hague Code of Conduct Against Ballistic Missile Proliferation |
| HCOC➣Hunger Clinic Organizing Committee (Canada) |
| HCOC➣Honda Car Owners Club (Malaysia) |
| HCOC➣Heritage of the Coptic Orthodox Church |
| HCOC➣Hazardous Chemicals of Concern |
| HCOC➣History Center of Olmsted County (Rochester, MN) |
| HCOC➣Hebrew Culture Organization of Canada |