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- Louis Sachar (born 1954) - Sideways Stories From Wayside School series, Holes
- Angie Sage (born 1952) - Septimus Heap series
- Antoine de Saint-Exupéry (1900–1944) - The Little Prince
- Carl Sandburg (1878–1967) - Rootabaga Stories
- Brandon Sanderson (born 1975) - Alcatraz Versus the Evil Librarians
- Margaret Marshall Saunders (1861–1947) - Beautiful Joe
- Malcolm Saville (1901–1982) - The Lone Pine Club series
- Allen Say (born 1937) - Grandfather's Journey, The Ink-Keeper's Apprentice
- Kurtis Scaletta - Mudville, Mamba Point, The Tanglewood Terror
- Richard Scarry (1919–1994) - The Busytown series
- Pam Scheunemann (born 1955) - Overdue Kangaroo, Ape Cape, The Crane Loves Grain
- Mark Schlichting - Harry and the Haunted House
- Laura Amy Schlitz - Good Masters! Sweet Ladies! Voices from a Medieval Village
- Christoph von Schmid (1768–1854) - The Basket of Flowers, Easter Eggs
- Alvin Schwartz (1927–1992) - Scary Stories to Tell in the Dark
- Michael Scott - The Secrets of the Immortal Nicholas Flamel series
- Will Scott (1893−1964) - The Cherrys series
- Laura Vaccaro Seeger - First the Egg
- Tor Seidler — A Rat's Tale, The Wainscott Weasel, Mean Margaret
- George Selden (1929–1989) - The Cricket in Times Square series
- Maurice Sendak (1928–2012) - Where the Wild Things Are
- Mike Serafin (born 1962) - 7 Stories from Baghdad, 4 Seasons of Baghdad
- Kate Seredy (1896–1975) - The White Stag, The Good Master, The Singing Tree
- Dr. Seuss (1904–1991) - The Cat in the Hat
- Anna Sewell (1820–1878) - Black Beauty
- Mark Shasha (born 1961) - Night of the Moonjellies
- Charles Green Shaw (1892–1974) - It Looked Like Spilt Milk
- Mary Shelley (1797–1851) - Maurice, or the Fisher's Cot
- Mary Martha Sherwood (1775–1851) - The History of Little Henry and his Bearer, The History of the Fairchild Family
- Gary (born 1966) & Rhoda Shipman (born 1968) - Pakkins' Land
- Mark Shulman (born 1962) - Mom and Dad are Palindromes, Secret Hiding Places
- Yrsa Sigurðardóttir (born 1963)
- Shel Silverstein (1930–1999) - The Giving Tree, Where the Sidewalk Ends
- Francesca Simon (born 1955) - Horrid Henry series
- Seymour Simon (born 1931) - Einstein Anderson, Science Detective
- Isaac Bashevis Singer (1902–1991) - Stories for Children
- Marilyn Singer (born 1948) - Turtle in July
- Steve Skidmore - Outernet series
- Obert Skye - Leven Thumps series
- William Sleator - Singularity, Rewind
- Barbara Sleigh (1906–1982) - The Carbonel series, Jessamy
- Dodie Smith (1896–1990) - 101 Dalmatians
- Edward Wyke Smith (1871–1935) - The Marvellous Land of Snergs
- Roland Smith - Thunder Cave, Zach's Lie, Jack's Run
- Pat Smythe (1928–1996) - Three Jays Series, Adventure Series
- Lemony Snicket - A Series of Unfortunate Events
- Jack Snow (1907–1956) - The Magical Mimics in Oz, The Shaggy Man of Oz
- Laurel Snyder - Up and Down the Scratchy Mountains, Any Which Wall, Penny Dreadful
- Zilpha Keatley Snyder - The Egypt Game, The Headless Cupid, The Witches of Worm
- Donald J. Sobol - Encyclopedia Brown series, Two-Minute Mysteries series
- Ivan Southall (1921–2008) - Josh, Ash Road, Hills End, To the Wild Sky, Bread and Honey, Fly West
- Elizabeth George Speare (1908–1994) - The Witch of Blackbird Pond, The Bronze Bow, The Sign of the Beaver
- Armstrong Sperry (1897–1976) - Call It Courage
- Jerry Spinelli - Loser, Stargirl, Maniac Magee, Crash, Wringer
- E.C. Spykman - A Lemon and a Star, The Wild Angel, Terrible Horrible Edie, Edie on the Warpath
- Johanna Spyri (1827–1901) - Heidi
- Andy Stanton - The Mr Gum series
- Dugald Steer - Ologies series
- Robert Louis Stevenson (1850–1894) - A Child's Garden of Verses, Treasure Island, Kidnapped
- Jennifer J. Stewart - If That Breathes Fire, We're Toast!, Close Encounters of a Third World Kind
- Mary Stewart (born 1916) - The Little Broomstick, Ludo and the Star Horse, A Walk in Wolf Wood
- Paul Stewart - The Edge Chronicles, Fergus Crane, Muddle Earth, Barnaby Grimes
- R. L. Stine (born 1943) - Goosebumps, Fear Street, The Nightmare Room series
- Frank R. Stockton (1834–1902) - The Lady or the Tiger?
- Margaret Storey - Timothy and the Two Witches, The Stone Sorcerer, Pauline
- Walter Scott Story (1879–1955) - Skinny Harrison Adventurer
- Todd Strasser - Help! I'm Trapped... series
- Edward Stratemeyer (1862–1930) - The Rover Boys series, The Stratemeyer Syndicate
- Noel Streatfeild (1895–1986) - Ballet Shoes, The Circus Is Coming, Curtain Up, White Boots
- Jonathan Stroud - The Bartimaeus Trilogy
- Dorothy Margaret Stuart (1889–1963) - The Children's Chronicle, The Young Clavengers
- Rosemary Sutcliff (1920–1992) - The Eagle of the Ninth, The Lantern Bearers
- Julia Suzuki - Yoshiko and the Gift of Charms
- Jonathan Swift (1667–1745) - Gulliver's Travels
Read more about this topic: List Of Children's Literature Authors