Leven Thumps is a series of children's fantasy novels by Obert Skye. The series, which has five books, deals with an orphaned 14-year-old boy, Leven Thumps, who becomes involved in a battle between good and evil. The five books in the series are titled Leven Thumps and the Gateway to Foo (2005), Leven Thumps and the Whispered Secret (2006), Leven Thumps and the Eyes of The Want (2007), Leven Thumps and the Wrath of Ezra (2008), and Leven Thumps and the Ruins of Alder (2009). These books were originally published by Shadow Mountain Publishing. Leven Thumps and the Gateway to Foo won the Benjamin Franklin award from the Independent Book Publishers Association in 2006.

The Leven Thumps series was followed by another series, a trilogy entitled Beyond Foo. The first book, Geth and the Return of the Lithens, was released on May 9, 2011.