The Sea-Wolf is a 1904 psychological adventure novel by American writer Jack London. The book's protagonist, Humphrey Van Weyden, is a literary critic who is a survivor of an ocean collision and who comes under the dominance of Wolf Larsen, the powerful and amoral sea captain who rescues him. Its first printing of forty thousand copies was immediately sold out before publication on the strength of London's previous The Call of the Wild. Ambrose Bierce wrote, "The great thing—and it is among the greatest of things—is that tremendous creation, Wolf Larsen... the hewing out and setting up of such a figure is enough for a man to do in one lifetime... The love element, with its absurd suppressions, and impossible proprieties, is awful."

John Griffith Chaney, better known as Jack London, was an American novelist, journalist and activist. A pioneer of commercial fiction and American magazines, he was one of the first American authors to become an international celebrity and earn a large fortune from writing. He was also an innovator in the genre that would later become known as science fiction.