The Ghost Writer is a 1979 novel by the American author Philip Roth. It is the first of Roth's novels narrated by Nathan Zuckerman, one of the author's putative fictional alter egos, and constitutes the first book in his Zuckerman Bound trilogy. The novel touches on themes common to many Roth works, including identity, the responsibilities of authors to their subjects, and the condition of Jews in America. Parts of the novel are a reprise of The Diary of Anne Frank.

Philip Milton Roth was an American novelist and short-story writer. Roth's fiction—often set in his birthplace of Newark, New Jersey—is known for its intensely autobiographical character, for philosophically and formally blurring the distinction between reality and fiction, for its "sensual, ingenious style" and for its provocative explorations of American identity. He first gained attention with the 1959 short story collection Goodbye, Columbus, which won the U.S. National Book Award for Fiction. Ten years later, he published the bestseller Portnoy's Complaint. Nathan Zuckerman, Roth's literary alter ego, narrates several of his books. A fictionalized Philip Roth narrates some of his others, such as the alternate history The Plot Against America.