The evolution of couple psychoanalysis in the United Kingdom is historically rooted in, and currently supported by, what might be called the Tavistock tradition, which principally derives from the work of Tavistock Relationships, a London-based organization combining clinical practice, training, and research. Practitioners working within this tradition draw on a range of psychoanalytic theories and differ in the ways they are applied in clinical practice and with different client groups, but they are united by their focus on relationship dynamics and how these can be affected by unconscious processes. This article charts how the main ideas and practices associated with the Tavistock tradition of couple psychoanalysis came into being, describes the conceptual building blocks that provide the platform for current training and practice, and identifies nodal points that might indicate directions of growth in the future.