The Urantia Book (sometimes called the Urantia Papers or The Fifth Epochal Revelation) is a spiritual and philosophical book that originated in Chicago sometime between 1924 and 1955. The authorship remains a matter of speculation.

The authors introduce the word "Urantia" as the name of the planet Earth and state that their intent is to "present enlarged concepts and advanced truth."[1][2] The book aims to unite religion, science and philosophy,[3] and its enormous amount of material about science is unique among literature claimed to be presented by celestial beings.[4] Among other topics, the book discusses the origin and meaning of life, humankind's place in the universe, the relationship between God and people, and the life of Jesus. It has been described as "a rich and complex moral narrative, equal parts Tolkien and St. Paul."[5]

The Urantia Foundation, a U.S.-based non-profit group, first published The Urantia Book in 1955. In 2001, a jury found that the English book's copyright was no longer valid after 1983.[6] The English text became a public domain work in the United States,[7] and in 2006 the international copyright expired.[a