John Sanford or John B. Sanford, born Julian Lawrence Shapiro (May 31, 1904 – March 5, 2003), was an American screenwriter and author who wrote 24 books. The Cambridge Companion to Jewish American Literature describes him as, "Perhaps the most outstanding neglected novelist." A one-time member of the Communist Party, after he and his wife Marguerite Roberts refused to testify to the House Un-American Activities Committee, they were blacklisted and unable to work in Hollywood for nearly a decade.