Eileen Vartan Barker OBE, (born 21 April 1938, Edinburgh, UK) is a professor in sociology, an emeritus member of the London School of Economics (LSE), and a consultant to that institution's Centre for the Study of Human Rights. She is the chairperson and founder of the Information Network Focus on Religious Movements (INFORM) and has written studies about groups she defines as cults and new religious movements (NRMs).