Authors: S
- Sachar, Louis
- Sage, Angie
- Salerni, Dianne K.
- Sanderson, Brandon
- Satrapi, Marjane
- Savvides, Irini
- Scamander, Newt
- Scarrow, Alex
- Schulz, Heidi
- Schusterman, Michelle
- Schwartz, Alvin
- Schwarzer, Mark
- Scieszka, Jon
- Scott, Katie
- Scott, Michael
- Scutt, Craig
- Shan, Darren
- Shannon, Samantha
- Sharmat, Andrew
- Sharmat, Mitchell
- Sharmat, Craig
- Sharratt, Nick
- Shepard, E.H.
- Shepard, Sara
- Shepherd, Megan
- Sheppard, Kate
- Silverberg, Robert
- Simmons, Kristen
- Simon, Coco
- Simont, Marc
- Simukka, Salla
- Sitts, Brian
- Smale, Holly
- Smith, Jeff
- Smith, Andrew
- Smith, Lane
- Smith, Alexander Gordon
- Smythe, James
- Snicket, Lemony
- Sniegoski, Thomas
- Spencer, Wayne C
- Spiegelman, Art
- Spinelli, Jerry
- Spooner, Meagan
- Spratt, R.A.
- Staniszewski, Anna
- Starling Lyons, Kelly
- Starmer, Aaron
- Stevenson, Noelle
- Stewart, Trenton Lee
- Stiefvater, Maggie
- Stiles Gannett, Ruth
- Stilton, Geronimo
- Stine, R.L.
- Stohl, Margaret
- Stokes, Floyd
- Storer, Jen
- Stroud, Jonathan
- Sugg, Zoe "Zoella"
- Summer, Mary Elizabeth
- Sundberg, Minna
- Sunderland, Alan
- Sutcliff, Rosemary
- Sutherland, Tui T.
- Swaab, Neil