| Abbreviation | Definition |
|---|---|
| HTD | High Throughput Development |
| HTMD | High Throughput Materials Development |
| HTPD | High Throughput Process Development |
| HUDA | Hyderabad Urban Development Authority |
| HUDE | Haitians Unified for Development and Education |
| HUDU | Healthy Urban Development Unit |
| HURD | Hardly Under Real Development |
| HWDI | Hardie Wren Development Initiatives |
| IAASTD | International Assessment of Agricultural Science and Technology for Development |
| IAASTD | International Assessment of Agricultural Science Technology for Development |
| IAD | Institute for Aboriginal Development |
| IAD | Institute for Academic Development |
| IAD | Institute for African Development |
| IAD | Integrated Athletic Development |
| IADC | International Airport Development Company |
| IADF | Indian Agricultural Development Foundation |
| IADF | International Aircraft Development Fund |
| IADP | Individualized Athlete Development Plan |
| IADP | Innovation Ambassador Development Programme |
| IADP | Innovation Area Development Partnership |