HRDI
| Acronym | Definition |
|---|---|
| HRDI | High Range Dynamic Image |
| HRDI | High Resolution Doppler Imager |
| HRDI | Human Resource Development International (UK) |
| HRDI | Human Resources Development Institute, Inc (Chicago, IL behavioral health organization) |
| HRDI | Healthcare Research and Development Institute (Pensacola, Florida) |
| HRDI | Hycroft Resources and Development Inc. |
| HRDI | Haleakala Research and Development, Inc. (plasma antennas; Brookfield, MA) |