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- Amanda Tabiri (born 1983) - The Adventures of Kwesi and Anna: Kwesi and Anna Lend a Helping Hand
- Colin Thiele (1920–2006) - Storm Boy, Blue Fin, Sun on the Stubble
- Kate Thompson - Switchers, The New Policeman
- Ruth Plumly Thompson (1891–1976) – The Royal Book of Oz
- James Thurber (1894–1961) - The Thirteen Clocks, The Wonderful O, Many Moons
- H. E. Todd (1908–1988) - The Bobby Brewster series
- Barbara Euphan Todd (1890–1976) - The Worzel Gummidge series
- J. R. R. Tolkien (1892–1973) - The Hobbit
- Aleksei Nikolaevich Tolstoy (1883–1945) - The Golden Key, or the Adventures of Buratino
- Leo Tolstoy (1828–1910) - Classic Tales and Fables for Children
- Sharon Tregenza (born 1951) - Tarantula Tide
- Nigel Tranter (1909–2000) - Spaniard's Isle, Nestor the Monster
- P. L. Travers (1899–1986) - Mary Poppins
- Mary Treadgold (1910–2005) - We Couldn't Leave Dinah
- Geoffrey Trease (1909–1998) - Cue for Treason, The Hills of Varna
- Henry Treece (1911–1966) - Horned Helmet, The Road to Miklagard, The Children's Crusade
- Sharon Tregenza (born 1951) - Tarantula Tide
- Meriol Trevor (1919–2000) - Merlin's Ring, The Other Side of the Moon, The Rose Round, The King of the Castle, The Letzenstein Chronicles
- Ethel Turner (1872–1958) - Seven Little Australians
- Julian Tuwim (1894–1953) - The Locomotive & other poems for children
- Mark Twain (1835–1910) - The Adventures of Tom Sawyer, Huckleberry Finn
Read more about this topic: List Of Children's Literature Authors