| Abbreviation | Definition |
|---|---|
| HCDT | Humanities Computing Development Team |
| HCDU | Healthcare Careers Development Unit |
| HCID | Harvard Center for International Development |
| HDB | Hunter Development Brokerage |
| HDC | Hawkins Development Company |
| HDC | Hotel Development Council |
| HDC | Housing Development Center |
| HDC | Human Development Commission |
| HDCA | Human Development and Capability Association |
| HDCA | Human Development Capability Association |
| HDDC | Historic Deutschtown Development Corporation |
| HDDC | Historic District Development Corporation |
| HDDD | Health Diagnostics and Drug Development |
| HDDI | Hialeah Dade Development Inc |
| HDE | Human Development and Education |
| HDF | Hispanic Development Fund |
| HDF | Housing Development Fund |
| HDF | Human Development Foundation |
| HDFC | Higher Development Finance Corporation |
| HDFC | Housing Development Fund Corporation |