| Abbreviation | Definition |
|---|---|
| HDF | mail code for CDER (Center for Drug Evaluation and Research) |
| HDL | high density lipoprotein |
| HDP | Hydroxymethylene Di-Phosphonate |
| HDPE | high density polyethylene |
| HEENT | Head, Eyes, Ears, Nose, & Throat |
| HEENT | head, eyes, ears, nose, throat |
| HEO | Hispanic Employee Organization |
| HEPA | High-Efficiency Particulate Air filter |
| hERG | human ether-a-go-go gene |
| HF | Headquarters, FDA Office of the Commissioner mail code |
| HF | mail code for FDA Office of the Commissioner |
| HFA | HydroFluoroAlkane |
| HFD | Headquarters, FDA Drug; mail code for Center for Drug Evaluation and Research |
| HFEB | Human Factors Engineering Branch |
| HFEB(CDRH) | Human Factors Engineering Branch (CDRH) |
| HFES | Human Factors and Ergonomics Society |
| HFM | Headquarters, FDA Management; mail code for Center for Biologics Evaluation and Research |
| HFM | mail code for Center for Biologics Evaluation and Research |
| HFS | Headquarters, FDA Safety; mail code for Center for Food Safety and Applied Nutrition |
| HFT | Headquarters, FDA Toxicology; mail code for National Center for Toxicological Research |