Eponyms beginning with S
- Southworth's symptom complex
- Soxhlet's apparatus
- Soxhlet's apparatus
- Soxhlet's chamber
- Soxhlet's extractor
- Space of Retzius
- Spaet-Dameshek syndrome
- Spalding's sign
- Spallanzani's law
- Spanlang-Tappeiner syndrome
- Spatz-Stiefler reaction
- Spegelberg's sign
- Spencer Wells forceps
- Spencer Wells' facies
- Spencer's syndrome
- Spencer’s winter vomiting
- Spengler' Splitter (German)
- Spengler's fragments
- Spengler's immunotherapy
- Spens' syndrome
- Sphincter Oddi
- Sphincter of Oddi
- Sphryanura osleri
- Spiegel's hernia
- Spiegel's line