Galeophobia or Gatophobia- Fear of cats.
Gallophobia or Galiophobia- Fear France or French culture. (Francophobia)
Gamophobia- Fear of marriage.
Geliophobia- Fear of laughter.
Geniophobia- Fear of chins.
Genophobia- Fear of sex.
Genuphobia- Fear of knees.
Gephyrophobia or Gephydrophobia or Gephysrophobia- Fear of crossing bridges.
Germanophobia- Fear of Germany or German culture.
Gerascophobia- Fear of growing old.
Gerontophobia- Fear of old people or of growing old.
Geumaphobia or Geumophobia- Fear of taste.
Glossophobia- Fear of speaking in public or of trying to speak.
Gnosiophobia- Fear of knowledge.
Graphophobia- Fear of writing or handwriting.
Gymnophobia- Fear of nudity.
Gynephobia or Gynophobia- Fear of women.
Hadephobia- Fear of hell.
Hagiophobia- Fear of saints or holy things.
Hamartophobia- Fear of sinning.
Haphephobia or Haptephobia- Fear of being touched.
Harpaxophobia- Fear of being robbed.
Hedonophobia- Fear of feeling pleasure.
Heliophobia- Fear of the sun.
Hellenologophobia- Fear of Greek terms or complex scientific terminology.
Helminthophobia- Fear of being infested with worms.
Hemophobia or Hemaphobia or Hematophobia- Fear of blood.
Heresyphobia or Hereiophobia- Fear of challenges to official doctrine or of radical deviation.
Herpetophobia- Fear of reptiles or creepy, crawly things.
Heterophobia- Fear of the opposite sex. (Sexophobia)
Hexakosioihexekontahexaphobia- Fear of the number 666.
Hierophobia- Fear of priests or sacred things.
Hippophobia- Fear of horses.
Hippopotomonstrosesquippedaliophobia- Fear of long words.
Hobophobia- Fear of bums or beggars.
Hodophobia- Fear of road travel.
Hormephobia- Fear of shock.
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.
Hydrargyophobia- Fear of mercurial medicines.
Hydrophobia- Fear of water or of rabies.
Hydrophobophobia- Fear of rabies.
Hyelophobia or Hyalophobia- Fear of glass.
Hygrophobia- Fear of liquids, dampness, or moisture.
Hylephobia- Fear of materialism or the fear of epilepsy.
Hylophobia- Fear of forests.
Hypengyophobia or Hypegiaphobia- Fear of responsibility.
Hypnophobia- Fear of sleep or of being hypnotized.
Hypsiphobia- Fear of height.
Iatrophobia- Fear of going to the doctor or of doctors.
Ichthyophobia- Fear of fish.
Ideophobia- Fear of ideas.
Illyngophobia- Fear of vertigo or feeling dizzy when looking down.
Iophobia- Fear of poison.
Insectophobia - Fear of insects.
Isolophobia- Fear of solitude, being alone.
Isopterophobia- Fear of termites, insects that eat wood.
Ithyphallophobia- Fear of seeing, thinking about or having an erect penis.
Japanophobia- Fear of Japanese.
Judeophobia- Fear of Jews.
Kainolophobia or Kainophobia- Fear of anything new, novelty.
Kakorrhaphiophobia- Fear of failure or defeat.
Katagelophobia- Fear of ridicule.
Kathisophobia- Fear of sitting down.
Kenophobia- Fear of voids or empty spaces.
Keraunophobia or Ceraunophobia- Fear of thunder and lightning.(Astraphobia, Astrapophobia)
Kinetophobia or Kinesophobia- Fear of movement or motion.
Kleptophobia- Fear of stealing.
Koinoniphobia- Fear of rooms.
Kolpophobia- Fear of genitals, particularly female.
Kopophobia- Fear of fatigue.
Koniophobia- Fear of dust. (Amathophobia)
Kosmikophobia- Fear of cosmic phenomenon.
Kymophobia- Fear of waves. (Cymophobia)
Kynophobia- Fear of rabies.
Kyphophobia- Fear of stooping.