Nebulaphobia - Fear of fog and clouds. (Homichlophobia)
Necrophobia - Fear of corpses, death or dead things.
Nelophobia - Fear of glass. (Crystallophobia, Hyalophobia, Hyelophobia)
Neopharmaphobia - Fear of new drugs or medicines. (Pharmacophobia)
Neophobia - Fear of newness, novelty, anything new, change, innovations, unfamiliar things. (Cainophobia, Cainotophobia, Kainophobia, Kainolophobia)
Nephophobia - Fear of clouds.
Noctiphobia - Fear of the night. (Nyctophobia, Nyctiphobia, Nyktosophobia)
Nomatophobia - Fear of names. (Onomatophobia)
Nosocomephobia - Fear of hospitals.
Nosophobia or Nosemaphobia - Fear of becoming ill.
Nostophobia - Fear of returning home.
Novercaphobia - Fear of your step-mother. (Vitricophobia)
Nucleomituphobia or Nucleomitaphobia or Nucleomitophobia - Fear of nuclear weapons.
Nudophobia - Fear of nudity. (Gymnophobia)
Numerophobia - Fear of numbers.
Nyctohylophobia - Fear of dark wooded areas or of forests at night. (Hylophobia, Xylophobia)
Nyctophobia or Nyctiphobia or Nyktosophobia - Fear of the dark or night. (Noctiphobia)