Catharine A. MacKinnon is the Elizabeth A. Long Professor of Law at the University of Michigan and the James Barr Ames Visiting Professor of Law at Harvard Law School (long-term). She holds a BA from Smith College, a JD from Yale Law School, and a PhD in political science from Yale, and specializes in sex equality issues under international and domestic (including comparative and constitutional) law.

Prof. MacKinnon pioneered the legal claim for sexual harassment and, with Andrea Dworkin, created ordinances recognizing pornography as a civil rights violation and the Swedish model for abolishing prostitution. The Supreme Court of Canada has largely accepted her approaches to equality, pornography, and hate speech, which have been influential internationally as well. Representing Bosnian women survivors of Serbian genocidal sexual atrocities, she won with co-counsel a damage award of $745 million in August 2000 in Kadic v. Karadzic under the Alien Tort Act, the first recognition of rape as an act of genocide.

Among the schools at which she has taught are Yale, Stanford, Chicago, Harvard, Osgoode Hall, Basel (Switzerland), Hebrew University (Jerusalem), and Columbia. She was awarded residential fellowships at the Institute for Advanced Study, Stanford, the Wissenschaftskolleg zu Berlin, and the University of Cambridge.

Prof. MacKinnon's scholarly books include Sexual Harassment of Working Women (1979), Feminism Unmodified (1987), Toward a Feminist Theory of the State (1989), Only Words (1993), Women's Lives, Men's Laws (2005), Are Women Human? (2006), and the casebook Sex Equality (2001/2007). She is widely published in journals, the popular press, and many languages.

Prof. MacKinnon practices and consults nationally and internationally and works regularly with Equality Now, an NGO promoting international sex equality rights for women, and the Coalition Against Trafficking in Women (CATW). Serving as the first Special Gender Adviser to the Prosecutor of the International Criminal Court (The Hague) from 2008 to 2012, she implemented her concept "gender crime."

Studies document that Prof. MacKinnon is among the most widely-cited legal scholars in the English language.