William Ronald Dodds Fairbairn (1889–1964), who published as W. Ronald D. Fairbairn, was a Scottish psychiatrist and psychoanalyst who spent his whole career in Edinburgh and is counted among the founders of object relations theory. He trained in philosophy and divinity before turning to medicine, and worked largely outside the London institutions of the British Psycho-Analytical Society. In a series of papers between 1940 and 1946 he set out a systematic revision of Sigmund Freud's theory, collected in his only book, Psychoanalytic Studies of the Personality1 (1952).
Fairbairn's starting point was that libido is primarily object-seeking rather than pleasure-seeking. From there he replaced Karl Abraham's libidinal phases with a development from infantile to mature dependence. He placed a schizoid position at the root of psychopathology, and described the moral defence, by which a child takes the badness of its parents into itself. In place of id, ego and superego he proposed an endopsychic structure of a split ego: a central ego, a libidinal ego and an internal saboteur, each bound to an internal object. His clinical material came from schizoid patients, from abused and delinquent children, and from soldiers with war neuroses.
Melanie Klein took up his term schizoid when she named the earliest of her positions, and his analysand Harry Guntrip became the leading expositor of his ideas. Otto Kernberg, Jay Greenberg, Stephen Mitchell and Thomas Ogden, among others, later drew on his work or re-read it. Greenberg and Mitchell placed his theory among the relational alternatives to Freud's drive theory.