Fear of:

  Phobia
Sacred things or priests  Hierophobia.
Satan  Satanophobia.
Scabies  Scabiophobia.
School, going to school  Didaskaleinophobia.
School  Scolionophobia.
Scientific terminology, complex  Hellenologophobia.
Scratches or being scratched  Amychophobia.
Sea or ocean  Thalassophobia.
Self, seeing oneself in a mirror  Eisoptrophobia.
Self, personal odor  Bromidrosiphobia or Bromidrophobia.
Self, being alone  Autophobia, Eremophobia, Eremiphobia 
 or Isolophobia.
Self, being dirty  Automysophobia.
Self, being oneself  Autophobia.
Self, being seen or looked at  Scopophobia or Scoptophobia.
Self, being touched  Aphenphosmphobia.
Self, that one has a vile odor  Autodysomophobia.
Semen  Spermatophobia or Spermophobia.
Sermons  Homilophobia.
Sex  Genophobia.
Sex, opposite  Heterophobia or Sexophobia.
Sexual abuse  Agraphobia or Contreltophobia.
Sexual intercourse  Coitophobia.
Sexual love or sexual questions  Erotophobia.
Sexual perversion  Paraphobia.
Shadows  Sciophobia or Sciaphobia.
Shellfish  Ostraconophobia.
Shock  Hormephobia.
Sin or of having committted an unpardonable sin  Enosiophobia or Enissophobia.
Sin  Hamartophobia.
Single: staying single  Anuptaphobia.
Sinning  Peccatophobia.
Sitting down  Kathisophobia.
Sitting  Cathisophobia or Thaasophobia.
Situations, certain  Topophobia.
Skin disease  Dermatosiophobia.
Skin lesions  Dermatophobia.
Skin of animals, fur  Doraphobia.
Sleep  Somniphobia.
Sleep or being hypnotized  Hypnophobia.
Slime  Blennophobia or Myxophobia.
Small things  Microphobia, Mycrophobia or Tapinophobia.
Smells or odors  Olfactophobia.
Smothered, being or choking  Pnigophobia or Pnigerophobia.
Snakes  Ophidiophobia or Snakephobia.
Snow  Chionophobia.
Social (fear of being evaluated negatively in social situations)  Social Phobia.
Society or people in general  Anthropophobia or Sociophobia.
Solitude  Monophobia.
Sounds  Acousticophobia.
Sourness  Acerophobia.
Space, closed or locked in an enclosed space  Cleithrophobia, Cleisiophobia, Clithrophobia.
Space, outer  Spacephobia.
Spaces, confined  Claustrophobia.
Spaces, empty  Cenophobia, Centophobia or Kenophobia.
Spaces, open  Agoraphobia.
Speak, trying to  Glossophobia.
Speaking  Laliophobia or Lalophobia.
Speaking aloud, voices or noises, or telephones  Phonophobia.
Speaking in public  Glossophobia.
Specters or ghosts  Spectrophobia.
Speed  Tachophobia.
Spiders  Arachnephobia or Arachnophobia.
Spirits  Pneumatiphobia.
Stage fright  Topophobia.
Stairs or climbing stairs  Climacophobia.
Stand, inability to  Basiphobia or Basophobia.
Standing upright  Basistasiphobia or Basostasophobia.
Standing up  Stasiphobia.
Standing up and walking  Stasibasiphobia.
Stared at, being  Ophthalmophobia.
Stars  Siderophobia or Astrophobia.
Statements, false or myths or stories  Mythophobia.
Staying single  Anuptaphobia.
Stealing  Cleptophobia or Kleptophobia.
Step father Vitricophobia
Step mother Novercaphobia
Stings  Cnidophobia or Linonophobia.
Stooping  Kyphophobia.
Stories or myths or false statements  Mythophobia.
Strangers or foreigners  Xenophobia.
Streets, crossing streets  Dromophobia.
Streets  Agyrophobia.
String  Linonophobia.
Storm, thunder  Brontophobia.
Stuttering  Psellismophobia.
Suffering and disease  Panthophobia.
Sun or sunlight  Heliophobia.
Sunshine or daylight  Phengophobia.
Surgeon's fear of operating: work or functioning  Ergasiophobia.
Surgical operations  Tomophobia.
Swallowing or eating  Phagophobia.
Symbolism  Symbolophobia.
Symmetry  Symmetrophobia.
Syphillis (lues)  Luiphobia or Syphilophobia.
Tapeworms  Taeniophobia.
Taste  Geumaphobia or Geumophobia.
Technology  Technophobia.
Teeth  Odontophobia.
Telephones, noises or voices, or speaking aloud  Phonophobia.
Telephones  Telephonophobia.
Termites  Isopterophobia.
Tests, taking  Testophobia.
Tetanus or lockjaw  Tetanophobia.
Theaters  Theatrophobia.
Theology  Theologicophobia.
Things, many  Polyphobia.
Things, large  Megalophobia.
Things or places, narrow  Stenophobia.
Things, small  Microphobia or Mycrophobia.
Thinking  Phronemophobia.
Thunder  Ceraunophobia.
Thunder and lightning  Astraphobia, Astrapophobia, Brontophobia or Keraunophobia.
Tickled by feathers or feathers  Pteronophobia.
Tied or bound up  Merinthophobia.
Time or clocks  Chronophobia.
Toads  Bufonophobia.
Tombstones  Placophobia.
Tornadoes and hurricanes  Lilapsophobia.
Touched, being touched  Aphenphosmphobia, Haphephobia or
 Haptephobia or Chiraptophobia.
Trains, railroads or train travel  Siderodromophobia.
Travel or road travel