Samhainophobia: Fear of Halloween.
Sarmassophobia- Fear of love play. (Malaxophobia)
Satanophobia- Fear of Satan.
Scabiophobia- Fear of scabies.
Scatophobia- Fear of fecal matter.
Scelerophibia- Fear of bad men, burglars.
Sciophobia Sciaphobia- Fear of shadows.
Scoleciphobia- Fear of worms.
Scolionophobia- Fear of school.
Scopophobia or Scoptophobia- Fear of being seen or stared at.
Scotomaphobia- Fear of blindness in visual field.
Scotophobia- Fear of darkness. (Achluophobia)
Scriptophobia- Fear of writing in public.
Selachophobia- Fear of sharks.
Selaphobia- Fear of light flashes.
Selenophobia- Fear of the moon.
Seplophobia- Fear of decaying matter.
Sesquipedalophobia- Fear of long words.
Sexophobia- Fear of the opposite sex. (Heterophobia)
Siderodromophobia- Fear of trains, railroads or train travel.
Siderophobia- Fear of stars.
Sinistrophobia- Fear of things to the left or left-handed.
Sinophobia- Fear of Chinese, Chinese culture.
Sitophobia or Sitiophobia- Fear of food or eating. (Cibophobia)
Snakephobia- Fear of snakes. (Ophidiophobia)
Soceraphobia- Fear of parents-in-law.
Social Phobia- Fear of being evaluated negatively in social situations.
Sociophobia- Fear of society or people in general.
Somniphobia- Fear of sleep.
Sophophobia- Fear of learning.
Soteriophobia - Fear of dependence on others.
Spacephobia- Fear of outer space.
Spectrophobia- Fear of specters or ghosts.
Spermatophobia or Spermophobia- Fear of germs.
Spheksophobia- Fear of wasps.
Stasibasiphobia or Stasiphobia- Fear of standing or walking. (Ambulophobia)
Staurophobia- Fear of crosses or the crucifix.
Stenophobia- Fear of narrow things or places.
Stygiophobia or Stigiophobia- Fear of hell.
Suriphobia- Fear of mice.
Symbolophobia- Fear of symbolism.
Symmetrophobia- Fear of symmetry.
Syngenesophobia- Fear of relatives.
Syphilophobia- Fear of syphilis.
