The Portrait of a Lady is a novel by Henry James, first published as a serial in The Atlantic Monthly and Macmillan's Magazine in 1880–81 and then as a book in 1881. It is one of James's most popular novels and is regarded by critics as one of his finest.

Henry James was an American-British author. He is regarded as a key transitional figure between literary realism and literary modernism, and is considered by many to be among the greatest novelists in the English language. He was the son of Henry James Sr. and the brother of philosopher and psychologist William James and diarist Alice James.