Gisela Bleibtreu-Ehrenberg (born August 2, 1929) is a German sociologist, ethnologist, sexologist, and writer further specializing into the fields of psychology, Indo-European studies, religious studies, and philosophy, since 1980 also increasingly anthropology.
As Bleibtreu-Ehrenberg uses these approaches in research particularly in the fields of sexology, homophobia, and prejudice studies, the US Society of Lesbian and Gay Anthropologists (SOLGA; formerly Anthropology Research Group on Homosexuality, ARGOH) of the American Anthropological Association ranked Bleibtreu-Ehrenberg's works on homophobia as internationally outstanding.