Heteronormativity names the set of normative assumptions — embedded in law, kinship, labor, education, medicine, and everyday practice — that organize social life around heterosexual reproduction and the binary division of gender. It is not simply the statistical prevalence of heterosexuality but the institutional enforcement of heterosexuality as the default, natural, and only fully intelligible form of intimate and social life.

The term was developed by Michael Warner in Fear of a Queer Planet (1993), building on Adrienne Rich’s earlier analysis of compulsory heterosexuality. Warner argued that heteronormativity is not merely an attitude or prejudice but a pervasive organization of social relations: the assumption built into tax codes, immigration law, hospital visitation rights, housing policy, and the structure of the workday that the basic unit of social life is the heterosexual couple and their biological children.

Queer-of-color critique has shown that heteronormativity does not operate uniformly across populations. Cathy Cohen argued that the heterosexual/queer binary obscures the fact that many heterosexual people of color — particularly Black single mothers, incarcerated people, and welfare recipients — are positioned as sexually deviant by the state. Heteronormativity is not a universal structure applied equally to all bodies; it operates through and as racial regulation, sanctioning some forms of heterosexuality (white, propertied, married) while pathologizing others.