• Hadephobia - Fear of hell
• Hagiophobia - Fear of saints or holy things
• Halitophobia - Fear of bad breath
• Hamartophobia - Fear of sinning
• Haphephobia - Fear of being touched
• Harpaxophobia - Fear of being robbed
• Hedonophobia - Fear of feeling pleasure
• Heliophobia - Fear of sunlight
• Hellenologophobia - Fear of Greek terms or complex scientific terminology
• Helminthophobia - Fear of being infested with worms
• Hemophobia - Fear of blood
• Heptadekaphobia - Fear of the number 17
• Heresyphobia - Fear of challenges to official doctrine or of radical deviation
• Herpetophobia - Fear of reptiles or amphibians
• Heterophobia - Fear of the opposite sex
• Hexakosioihexekontahexaphobia - Fear of the number 666
• Hierophobia - Fear of priests or sacred things
• Hippophobia - Fear of horses
• Hippopotomonsrosesquippedaliophobia - Fear of long words
• Hobophobia - Fear of bums or beggars
• Hodophobia - Fear of travel
• Homichlophobia - Fear of fog
• Homilophobia - Fear of sermons
• Hominophobia - Fear of men
• Homophobia - Fear of sameness, monotony or of homosexuality or of becoming homosexual
• Hoplophobia - Fear of firearms
• Hormephobia - Fear of shock
• Hydrargyophobia - Fear of mercurial medicines
• Hydrophobia - Fear of water
• Hydrophobophobia - Fear of rabies
• Hyelophobia - Fear of glass
• Hygrophobia - Fear of liquids, dampness, or moisture
• Hylephobia - Fear of materialism or the fear of epilepsy
• Hylophobia - Fear of forests
• Hypengyophobia - Fear of responsibility
• Hypnophobia - Fear of sleep or of being hypnotized
• Hypochondria - Fear of illness
• Hypsiphobia - Fear of height