Stewart, Sean
- ( S )
- Saberhagen, Fred
- Sagan, Carl
- Salvatore, R.A.
- Sargent, Carl
- Sargent, Pamela
- Sarrantonio, Al
- Sarti, Ron
- Savage, Felicity
- Sawyer, Robert J.
- Scarborough, Elizabeth Ann
- Scott, Melissa
- Segrelles, Vicente
- Severance, Carol
- Shahar, Eluki Bes
- Shatner, William
- Shea, Robert
- Sheckley, Robert
- Sheffield, Charles
- Shelley, Rick
- Shepherd, Mark
- Sherman, Josepha
- Shetterly, Will
- Shinn, Sharon
- Shwartz, Susan
- Sibley, Brian
- Silke, James
- Silverberg, Robert
- Simmons, Dan
- Simmons, Wm. Mark
- Simon, Morris
- Simonson, Walter
- Skemp, Ethan
- Slonczewski, Joan
- Smith, Cordwainer
- Smith, Dean Wesley
- Smith, E.E. 'Doc'
- Smith, Julie Dean
- Snyder, Midori
- Somtow, S.P.
- Soroka, Cynthia
- Spector, Caroline
- Spencer, William Browning
- Springer, Nancy
- Stableford, Brian
- Stackpole, Michael A.
- Starlin, Jim
- Stasheff, Christopher
- Steele, Allen
- Stephenson, Neal
- Sterling, Bruce
- Stern, Roger
- Stevermer, Caroline
- Stewart, Mary
- Stewart, Sean
- Stirling, S.M.
- Stith, John E.
- Stockbridge, Grant
- Sumner, Mark
- Sussex, Lucy
- Swanwick, Michael