Bernard Augustine DeVoto (January 11, 1897 - November 13, 1955) was an American historian and author who specialized in the history of the American West. He gained fame for his popular and award-winning histories of the West: The Year of Decision: 1846 (1942), Across the Wide Missouri (1947), The Course of Empire (1952), and a popular abridged edition of The Journals of Lewis and Clark (1953). From the 1940s to the end of his life, he was renowned for his championing of public lands and of conservation of natural resources, as well as his passionate defense of civil liberties.