Mari J. Matsuda (born 1956) is an American lawyer, activist, and law professor[1] at the William S. Richardson School of Law at the University of Hawaiʻi at Mānoa. She was the first tenured female Asian American law professor in the United States, at University of California, Los Angeles (UCLA) School of Law in 1998 and one of the leading voices in critical race theory since its inception. Matsuda returned to Richardson in the fall of 2008. Prior to her return, Matsuda was a professor at the UCLA School of Law and Georgetown University Law Center, specializing in the fields of torts, constitutional law, legal history, feminist theory, critical race theory, and civil rights law.