Judith Butler (1956) is an American philosopher and gender theorist whose work has influenced political philosophy, ethics and the fields of feminist, queer and literary theory. Since 1993, she has taught at the University of California, Berkeley, where she is now Maxine Elliot Professor in the Department of Rhetoric and Comparative Literature and co-director of the Program of Critical Theory.
Academically, Butler is most well-known for her books Gender Trouble: Feminism and the Subversion of Identity and Bodies That Matter: On the Discursive Limits of "Sex", which challenge notions of gender and develop her theory of gender performativity.
- Subjects of Desire: Hegelian Reflections in Twentieth-Century France , 1987.
- Gender Trouble: Feminism and the Subversion of Identity, Routledge, 1990. 
- Bodies That Matter: On the Discursive Limits of "Sex", Routledge, 1993.
- Excitable Speech: A Politics of the Performative, Routledge, 1997.
- Antigone's Claim: Kinship Between Life and Death, Columbia University Press, 2000.
- with Ernesto Laclau and Slavoj Žižek, Contingency, Hegemony, Universality: Contemporary Dialogues on the Left, London & New York: Verso, 2000.
- Undoing Gender, New York & London: Routledge, 2004. 
- Giving an Account of Oneself, Fordham University Press, 2005. 
- Le récit de soi, trans. Bruno Ambroise and Valérie Aucouturie, Paris: PUF, 2007. (French) .
- with Athena Athanasiou, Dispossession: The Performative in the Political, Polity, 2013.
- Vicki Kirby, Judith Butler: Live Theory, Continuum, 2006.
- Elena Loizidou, Judith Butler: Ethics, Law, Politics, Routledge-Cavendish, 2007.
- Moya Lloyd, Judith Butler: From Norms to Politics, Polity, 2007.
- Terrell Carver, Samuel Chambers (eds.), Judith Butler's Precarious Politics: Critical Encounters, Routledge, 2008.
- Samuel Chambers, Terrell Carver, Judith Butler and Political Theory: Troubling Politics, Routledge, 2008.