S
- Luitfried von Salvini-Plawen (1939-), from Austria
- Madoka Sasaki (?-1927), from Japan, works about Cephalopoda
- Takenori Sasaki (19??), the malacologist from the University Museum, the University of Tokyo. http://www.um.u-tokyo.ac.jp/hp/sasaki/
- Thomas Say
- Christoffer Schander (1960-2012), from Sweden, Director of University Museum of Bergen, Norway.
- Mattheus Marinus Schepman (1847-1919), from the Netherlands
- Otto Heinrich Schindewolf (1896–1971), from Germany, evolution of cephalopods
- Revett Sheppard
- Heinrich Christian Friedrich Schumacher
- Bohumil Shimek
- Robert James Shuttleworth (1810–1874), from Great Britain and Switzerland
- Hartwig Schütt (1923–2009), from Germany, expert in land snails of Turkey
- Charles Torrey Simpson
- Heinrich Simroth
- Claude Sionnest
- Antoni Ślósarski (1843–1897), from Poland, pl:Antoni Ślósarski
Read more about this topic: Malacologist