Mary Susan McIntosh (13 March 1936 – 5 January 2013) was a British sociologist, feminist, political activist and campaigner for lesbian and gay rights in the United Kingdom.

[4] McIntosh was educated at High Wycombe School for Girls and St Anne's College, Oxford, where she read Philosophy, Politics and Economics.

[7] On her return to the UK, McIntosh worked as a researcher for the Home Office from 1961 to 1963 before taking up the post of lecturer in Sociology at the University of Leicester from 1963 to 1968.

[3] Throughout her career she taught a wide range of courses covering criminology, theory, sociology, social policy, the family, gender studies, feminism and Marxism.

[10] This paper has been described as being crucial in the shaping of social constructionism,[11] a theory later developed by, and widely attributed to, the French philosopher Michel Foucault.

[3] Her archive composed of correspondence, research notes, campaigning materials, journals and ephemera is held by the London School of Economics and Political Science Library.