- Squishy Taylor and the Mess-Makers
- Squishy Taylor and the Silver Suitcase
- Squishy Taylor and the Tunnel of Doom
- Staged
- Stain
- Stained Glass Summer
- Stan splątania
- Stand Tall
- Stand Up, Yumi Chung!
- Standing Against the Wind
- Star Cursed
- Star in the Forest
- Star Shine
- Starbird Murphy and the World Outside
- Starfell 2-Book Collection, Volume 1
- Starring Peter and Leigh
- Starring Sally J. Freedman as Herself
- Starters
- Starting with Alice
- Starting with Melodie
- Station underjorden
- Stay out of the Cornfield!
- Stealing Away: When Wrong is the Only Choice
- Stealing Christmas
- Stealing Freedom
- Stealing Home
- Stealing Mt. Rushmore
- Stealing Stacey
- Stef Soto, Taco Queen
- Stefan - Jenseits der Kindheit
- Stella
- Stella Stands Alone
- Stepbrother: The Game He Plays
- Stepping Stones
- Stick
- Stick
- Sticks and Stones
- Stilettos & Stardust
- Still Life with Tornado
- Still Waters
- Still Waving
- Stingers
- Stitches and Strings
- Stolen City
- Stone Cottage. Wagtail Lane
- Stone Girl
- Stone Rider
- Storia d'agosto, di Agata e d'inchiostro
- Storia di un cigno- storia di un amore
- Storm
- Storm Blown
- Storm Rescue
- Storm Squad Rising
- Storm Warning
- Stormen
- Stormfront
- Stortjuvens pojke
- Story of a Girl (National Book Award Finalist)
- Strandgut
- Stranger and Stranger
- Strange Relations
- Strange the Dreamer
- Stranger Danger
- Stranger in Dadland
- Stranger Things: Runaway Max
- Stray
- Strike Two
- String Cheese: To the Cheese with the String
- Studierte Mädel
- Stumbledirt
- Su único hijo
- Subway Chronicles
- Sueños en la gran manzana (Serie New York Academy 2)
- Sueños rojos (Chasing Red 1)
- Sugar
- Summer at Eagle Mountain
- Summer at Forsaken Lake
- Summer at Paradise Ranch
- Summer Ball
- Summer Constellations
- Summer in the Invisible City
- Summer Love (A Forever Series Novella)
- Summer of Love
- Summer of Stolen Secrets
- Summer of Supernovas
- Summer of the Dragons
- Summer of the Monkeys
- Summer of the Wolves
- Summer on the Moon
- Summer Showers
- Summer's End
- Summerhouse Time
- Summerlost
- Sundae Girl
- Sunny's California Diaries
- Sunny: Diary One
- Sunny: Diary Three
- Sunny: Diary Two
- Sunshine Warrior
- Super Fake Love Song
- Super Jake and the King of Chaos
- Super stærke Susi
- Superfoot