| HCB | Half Circle Back 
| Others |
| HCB | Half Circle Backwards
| Others |
| HCB | Harmful Cyanobacterial Bloom
| Others |
| HCB | Harrison College of Business
| Others |
| HCB | Harsh Conditions Barrier
| Others |
| HCB | Harvard Club of Boston
| Others |
| HCB | Hastings City Bank
| Others |
| HCB | Haut Conseil des Biotechnologies
| Others |
| HCB | HCB Classroom Building
| Others |
| HCB | Head Coach Bower
| Others |
| HCB | Heartland Community Bank
| Others |
| HCB | Henri Cartier Bresson
| Others |
| HCB | Her Closet Boston
| Others |
| HCB | Hexachlorobenzene
| Others |
| HCB | High Class Bituminous
| Others |
| HCB | Highpoint Community Bank
| Others |
| HCB | Hillman Composite Beams
| Others |
| HCB | Hinged Controller Base
| Others |
| HCB | Hip Chicks Boutique
| Others |
| HCB | Hirschfelder Curtiss and Bird
| Others |
| HCB | Historic City Building
| Others |
| HCB | Hockey club Bolzano
| Others |
| HCB | Hogares Comunitarios de Bienestar (Community Welfare Daycare Centers)
| Others |
| HCB | Holy City Brewing
| Others |
| HCB | Holy Cow Batman
| Others |
| HCB | Home and Community Based
| Others |
| HCB | Honda Cars of Bellevue
| Others |
| HCB | Honda Club Bogota
| Others |
| HCB | Howard Custom Boats
| Others |
| HCB | Huang Chen Bin
| Others |
| HCB | Huge Cherry Blossom
| Others |
| HCB | Huge Classroom Building
| Others |
| HCB | Humana Communities Benefit
| Others |
| HCB | HUNT Compressed Bitstream
| Others |
| HCB | Huron Community Bank
| Others |
| HCB | Hybrid Cash Balance
| Others |
| HCB | Hybrid Composite Beam
| Others |
| HCB | Hydrasports Custom Boats
| Others |
| HCB | Hypnotherapy Control Board
| Others |
| HCB | Shoal Cove, Alaska USA
| Others |