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- Yoshiki Tanaka, author of The Heroic Legend of Arslan
- Charles R. Tanner, (1896–1974)
- Judith Tarr
- Roger Taylor, author of the Chronicles of Hawklan
- Adrian Tchaikovsky, author of the Shadows of the Apt series
- Tais Teng
- Patrick Tilley, (born 1928) author of The Amtrak Wars series
- Sheri S. Tepper
- Eldon Thompson, (born 1974) author of The Legend of Asahiel series
- Kate Thompson (born 1956)
- J. R. R. Tolkien, (1892–1973) author of The Hobbit, The Lord of the Rings and The Silmarillion
- Licia Troisi, (born 1980) author of the Cronache del Mondo Emerso (Chronicles of the Emerged World) and the Le guerre del Mondo Emerso (Wars of the Emerged World)
- Harry Turtledove, (born 1949) author of the Videssos series and Darkness series
Read more about this topic: List Of Fantasy Authors