Joshua Braff (born October 11, 1967) is an American writer.
His first novel, The Unthinkable Thoughts of Jacob Green, described as a Jewish coming of age tale, was published in 2004 by Algonquin Books of Chapel Hill. He contributed a short work entitled "Exit 15W" to the collection of shorts about New Jersey entitled Living on the Edge of the World after his hometown of South Orange. His second novel is Peep Show (Algonquin, 2010).
Joshua is the older brother of actor-director Zach Braff. His father was born Jewish and his mother, originally a Protestant, converted to Judaism.