| Hypnophobia or somniphobia is the fear of sleep. |
| Hylophobia is the fear of trees, forests or wood. |
| Hydrophobia is the fear of water, frequently noted as a common symptom of rabies. |
| Homophobia is the fear of homosexuals or of homosexual relationships; homophobic. |
| Hippopotomonstrosesquipedaliophobia is the fear of long words. |
| Hexakosioihexekontahexaphobia is the fear of the number 666. |
| Haemophobia is the fear of blood. |
| Isn't it a bit unnerving that doctors call what they do "practice?" |
| Heliophobia is the fear of sunlight. |
| Haphephobia is the fear of being touched. |