John Twelve Hawks is the pseudonym of an author of four novels and one short non-fiction book. His legal name and identity are unknown.

His first published novel was the dystopian The Traveler and its sequels, The Dark River and The Golden City, collectively comprising the Fourth Realm Trilogy. The trilogy has been translated into 25 languages and has sold more than 1.5 million books.

The trilogy was followed five years later by a fourth book, Spark, and a non-fiction eBook, Against Authority.