Judith Butler, American philosopher, theorist, and author
Judith Pamela Butler (born February 24, 1956) is an American philosopher and gender theorist whose work has influenced political philosophy, ethics, and the fields of third-wave feminism, queer theory, and literary theory. In 1993, Butler began teaching at the University of California, Berkeley, where they have served, beginning in 1998, as the Maxine Elliot Professor in the Department of Comparative Literature and the Program of Critical Theory. They are also the Hannah Arendt Chair at the European Graduate School.Butler is best known for their books Gender Trouble: Feminism and the Subversion of Identity (1990) and Bodies That Matter: On the Discursive Limits of Sex (1993), in which they challenge conventional notions of gender and develop their theory of gender performativity. This theory has had a major influence on feminist and queer scholarship. Their work is often studied and debated in film studies courses emphasizing gender studies and performativity in discourse.

Butler has supported lesbian and gay rights movements, and they have spoken out on many contemporary political issues, including criticism of Israeli politics.