| Acronym | Definition |
|---|
| HCB | Hexachlorobenzene |
| HCB | Henri Cartier-Bresson (French photographer; 1908-2004) |
| HCB | Hidroeléctrica de Cahora Bassa (Portuguese: Cahora Bassa Hydroelectric; Mozambique) |
| HCB | Half Circle Back (motion; gaming) |
| HCB | Human Capacity Building |
| HCB | Hood Canal Bridge (Washington) |
| HCB | Holy Cow Batman |
| HCB | Hybrid-Composite Beam (engineering) |
| HCB | Hampshire Cricket Board (UK) |
| HCB | Herpetological Conservation and Biology (journal) |
| HCB | Hollow Concrete Block |
| HCB | House Connection Branch (plumbing) |
| HCB | Houston Concert Band (Houston, TX) |
| HCB | Hard Carbon Brush |
| HCB | Hackettstown Community Band (Hackettstown, NJ) |
| HCB | Health Care Beneficiary |
| HCB | Hobart City Band (Hobart, Tasmania, Australia) |
| HCB | High Class Bituminous (roadway structural rating) |
| HCB | Hamilton Concert Band (Hamilton, Ontario, Canada) |
| HCB | Houston College of the Bible (Texas) |
| HCB | Hertfordshire Concert Band (University of Hertfordshire) |
| HCB | Hawaii County Band (Hilo, HI) |
| HCB | Hanover Concert Band (Ashland, VA) |
| HCB | Harmonie Concert Band (UK) |
| HCB | Heights Concert Band (St. Louis, MO) |
| HCB | Huntington Community Band (Huntington, NY) |
| HCB | Huntsville Concert Band (Huntsville, AL) |
| HCB | Henrico Concert Band (Richmond, VA) |
| HCB | Haywood Community Band (Hazelwood, NC) |
| HCB | Height of Cloud Base (meteorology) |
| HCB | HTML (HyperText Markup Language) Comment Box (widget) |