Iantrophobia - 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.
