The Confidential Agent (1939) is a thriller novel by British author Graham Greene. Fuelled by Benzedrine, Greene wrote it in six weeks. To avoid distraction, he rented a room in Bloomsbury from a landlady who lived in a flat below him. He used that apartment in the novel and had an affair with the landlady's daughter. He wrote the book for money and was so displeased with his work that he wanted it published under a pseudonym. But critics took a far different view; The New York Times, for example, called the novel "a magnificent tour-de-force".

Henry Graham Greene was an English writer and journalist regarded by many as one of the leading novelists of the 20th century.