| Hypostase | hypostase |
| Hypotaxe | hypotaxis |
| Hämostase | coagulation |
| Hypophyse | hypophysis pituitary gland |
| Hypoplasie | hypoplasia |
| Hypothese | hypothesis |
| Apostasie | apostasy |
| Kryostase | cryostasis |
| Homöostase | homeostasis homoeostasis homœostasi |
| Hypogamie | hypogamy |
| Hypokauste | hypocaust |
| Hypotaxis | hypotaxis |
| Hypallage | hypallage |
| Hypnose | hypnosis |
| Hypokrisie | hypocrisy |
| Hyponymie | hyponymy |
| Hypotenuse | hypotenuse |
| Hypothek | mortgage |
| Hypotonie | hypotension hypotonia hypotonicity |
| Hypoxie | hypoxia hypoxaemia oxygen deficiency oxygen depletion |