| HAEC | Human Artificial Episomal Chromosome | - | Medical |
| HELSRD | Health Effects And Life Science Research Division | - | Medical |
| HERAC | Health And Environmental Research Advisory Committee | - | Medical |
| HGCC | Human Genome Coordinating Committee | - | Medical |
| HGM | Human Genome Meeting | - | Medical |
| HGMIS | Human Genome Management Information System | - | Medical |
| HGN | Human Genome News | - | Medical |
| HGP | Human Genome Project | - | Medical |
| HHMI | Howard Hughes Medical Institute | - | Medical |
| HICSS | Hawaii Intl. Conf. On Systems Sci. | - | Medical |
| HLA | Human Leukocyte Antigen | - | Medical |
| HMDP | Homology Database | - | Medical |
| HNPCC | Hereditary Nonpolyposis Colorectal Cancer | - | Medical |
| HSA | Human Serum Albumin | - | Medical |
| HUGO | Human Genome Organisation | - | Medical |
