HOCC
| Acronym | Definition |
|---|---|
| HOCC | Humanitarian Operations Coordination Center (US DoD) |
| HOCC | Homeschoolers of Collier County (Florida) |
| HOCC | Hagelandse Oude Citroën Club (Dutch: Hageland Old Citroën Club; automobile club; Hageland, Belgium) |
| HOCC | Hunt Oil Company of Canada |
| HOCC | Human Ovarian Cancer Cell |
| HOCC | Heart of Carolina Chorus (Durham, NC; est. 2004) |
| HOCC | Heads of Customs Conference (World Customs Organization East and Southern Africa) |