| HCDP | Haiti Christian Development Project
| Others |
| HCDP | Haitian Community Development Project
| Others |
| HCDP | Hamilton County Democratic Party
| Others |
| HCDP | Harris County Democratic Party
| Others |
| HCDP | Headless Console and Debug Port
| Others |
| HCDP | Health Care Delivery Policy
| Others |
| HCDP | Health Care Delivery Program
| Others |
| HCDP | Health Careers Development Program
| Others |
| HCDP | Henderson County Democratic Party
| Others |
| HCDP | Human Capacity Development Program
| Others |
| HCDP | Human Communications Data Protocol
| Others |
| HCDP | Humanity and Community Development Projects
| Others |