What Maisie Knew is a novel by Henry James, first published as a serial in The Chap-Book and (revised and abridged) in the New Review in 1897 and then as a book later that year.

When Beale and Ida Farange divorce, the court decrees that their only child, the very young Maisie, will shuttle back and forth between them, spending six months of the year with each.

Edmund Wilson was one of many critics who admired both the book's technical proficiency and its judgment of a negligent and damaged society.

[3] The psychoanalytic critic Neil Hertz has argued for a parallel between James' narrative voice and the problem of transference in Freud's Dora case.

[4] An eponymous film adaptation was released in 2012, directed by Scott McGehee and David Siegel, and starring Julianne Moore, Alexander Skarsgård, and Onata Aprile.