- Shelby and the Lost Boy of Misbegot Island
- Shelter (Book One)
- Sherlock & Elf
- Sherlock Holmes adattato per i bambini: Silver Blaze
- Sherlock, Lupin és én
- Shield of Beom
- Shield of Honor: The Secret of the Zar
- Shift
- Shifters And Glyphs
- Shifting Air
- Prophecy of Fire
- Shimmer
- Shine Mountain
- Ship Breaker (National Book Award Finalist)
- Ship of Fire
- Ship of Smoke and Steel
- Shipwreck
- Shipwreck Island
- Shipwrecked
- Shipwrecked!
- Shipwrecked! (Illustrated)
- Shipwreckers
- Shiver
- Shock
- Shock Me Twice
- Shock Point
- Shoestring, the Boy Who Walks on Air
- Shooter Boy
- Short Stories by Teens for Teens
- Should Any Calamity Befall
- Shouldn't You Be in School?
- Showdown at Widow Creek
- Showjumpers
- Shrewdest Faction
- SHRIMP-TINI: Shaken Not Stirred
- Shuriken of Honor
- Si la bergamote m'était contée
- Siberia
- Sid the Squid
- Sidekick Simmons: Enemies and Allies
- Sidekicks
- Sidekicks 4: The Candy Man Cometh
- Sidekicks 5: The Brotherhood of Rotten Babysitters
- Sie hatten einen Traum
- Sieben Helden
- Siebzehn Tage im August
- Siege Mentality (ReMade Season 2 Episode 10)
- Siege of Rage and Ruin
- Siegel
- Sign of the Black Dagger
- Sign of the Dove
- Signal to Noise (ReMade Season 2 Episode 2)
- Significant
- Sihirli Yüzük
- Sikander gegen die Götter, Band 1: Das Schwert des Schicksals (Rick Riordan Presents)
- Silence over Dunkerque
- Silenced!
- Silent
- Silent (but Deadly) Night
- Silent Saturday
- Silent Screen
- Silent Weapon - a Street Soldier Novel
- Silent Wings
- Silex
- Silly Dreamers
- Silver Batal and the Water Dragon Races
- Silver Batal: Race for the Dragon Heartstone
- Silver Dream
- Silver Eve
- Silver Eyes
- Silver Frost
- Silver Stone Mountain
- Silver. Powrót na Wyspę Skarbów
- Silvertongue
- SIMBA THE FIREBOY: Simba and the Treasure of Ocal
- Simba The Fireboy: The Last Mind Bender
- Simon Greenpants and the Wild Chase
- Simples contes des collines
- Simón y los hembros
- Sinensis Camellia
- Singe-Roi
- Singed Feathers
- Singing Home the Whale
- Singing the Dogstar Blues
- Singular
- Sinister Paradise
- Sinking the Ship and other stories
- Sir Francis Drake
- Sir Kevin and the Challenges
- Sir Lancelot, Where Are You? #6
- Sir Ludar
- Sir Nigel
- Sir Ockham’s Journey