Tik-Tok of Oz is the eighth book in the Oz series written by L. Frank Baum, published on June 19, 1914. The book has little to do with Tik-Tok and is primarily the quest of the Shaggy Man to rescue his brother, and his resulting conflict with the Nome King. The book was based on Baum's play The Tik-Tok Man of Oz, which was produced in Los Angeles in spring 1913.

Lyman Frank Baum was an American author best known for his children's fantasy books, particularly The Wonderful Wizard of Oz, part of a series. In addition to the 14 Oz books, Baum penned 41 other novels, 83 short stories, over 200 poems, and at least 42 scripts. He made numerous attempts to bring his works to the stage and screen; the 1939 adaptation of the first Oz book became a landmark of 20th-century cinema.