| HDB | Hamilton Direct Bank 
| Others |
| HDB | Handling Data Base
| Others |
| HDB | Hardware Development Board
| Others |
| HDB | Health Discovery Building
| Others |
| HDB | Heavy Duty Bags
| Others |
| HDB | Heavy Duty Ball
| Others |
| HDB | Heavy Duty Box
| Others |
| HDB | Heavy Duty Bus
| Others |
| HDB | Heterogeneous Data Base
| Others |
| HDB | Hex Dec Bin
| Others |
| HDB | High Definition Bass
| Others |
| HDB | High Density Binary
| Others |
| HDB | High Density Biomass
| Others |
| HDB | High Density Bipolar
| Others |
| HDB | High Level Data Base
| Others |
| HDB | Historical Data Base
| Others |
| HDB | Hollow Dielectric Beamguide
| Others |
| HDB | Home Data Base
| Others |
| HDB | Host Data Base
| Others |
| HDB | Hot Dogs and Buns
| Others |
| HDB | Hotel Direct Booster
| Others |
| HDB | Houget Duesberg Bosson
| Others |
| HDB | Housing and Development Board
| Others |
| HDB | Housing and Development Boards
| Others |
| HDB | Housing Development Board
| Others |
| HDB | Hubert De Backer
| Others |
| HDB | Hull Distribution Box
| Others |
| HDB | Hunter Development Brokerage
| Others |
| HDB | Hybrid Data Base
| Others |
| HDB | Hydraulic Disc Brakes
| Others |
| HDB | Hydro Dynamic Bearing
| Others |
| HDB | Hydrostatic Design Basis
| Others |