- S -
- Sadler, Matthew
- Sakajew, Konstantin
- Samarian, Sergiu
- Sammalvuo
- Sampaio
- Sanakojew
- Sanchez, Miguel A.
- Santasier
- Sapi
- Saumweber, Walter
- Sawyer, Tim
- Sedlak, Nikola
- Seel, Christian
- Seidel
- Seirawan, Yasser
- Semkov
- Seppeur
- Sethuraman, S.P.
- Shahade, Jennifer
- Shankland, Sam
- Shashin, Alexander
- Shaw, John
- Shmirin
- Short, Nigel
- Sibbing
- Siebenhaar, Erich
- Sielecki, Christof
- Silman, Jeremy
- Sivertsen, Aage G.
- Smerdon, David
- Smirin, Ilya
- Smith
- Smith, Axel
- Smyslow
- Snape
- Sneed, Joel R.
- Snosko-Borowski
- Sohrabi
- Sokolov, Ivan
- Soloviev
- Solozhenkin, Evgeniy
- Soltis, Andrew
- Somlai
- Sommer, Jörg
- Sosonko, Genna
- Soszynski
- Souleidis, Georgios
- Speelman, Jonathan
- Spielmann, Rudolf
- Spindler, Markus
- Srokovski, Yaroslav
- Suba, Mihai
- Suetin, Alexey
- Sukhin, Igor
- Summerscale, Aaron
- Svetushkin, Dmitry
- Sweschnikow, Jewgeni