From the U.S. Supreme Court to international tribunals, women lawyers have played pivotal roles in shaping the law. Their advocacy has advanced civil rights, expanded access to justice, and influenced constitutional interpretation across generations. Here are six groundbreaking women whose courtroom leadership left a lasting mark on history.

Ruth Bader Ginsburg and Gender Equality Cases

Prior to becoming a Supreme Court justice, Ruth Bader Ginsburg argued six gender discrimination cases before the U.S. Supreme Court in the 1970s, winning five. Representing the American Civil Liberties Union, she strategically chose cases where men were also harmed by sex-based laws to highlight systemic inequality. In Reed v. Reed (1971), she helped establish that the Equal Protection Clause of the 14th Amendment applied to gender discrimination for the first time. Ginsburg’s careful legal reasoning built the foundation for decades of progress in women’s rights. Her courtroom advocacy remains a landmark example of how one lawyer can reshape constitutional interpretation and advance equality for millions.

Constance Baker Motley and Civil Rights

Constance Baker Motley, the first Black woman to argue before the U.S. Supreme Court, made history through her work with the NAACP Legal Defense Fund. She played a central role in Meredith v. Fair (1962), securing James Meredith’s admission to the University of Mississippi. Motley also worked on Brown v. Board of Education (1954), which ended legal segregation in public schools. She argued 10 Supreme Court cases, winning nine. Her fearless advocacy not only advanced civil rights but also paved the way for greater diversity in the legal profession. Motley later became the first Black woman appointed as a federal judge, continuing her trailblazing legacy.

Clara Shortridge Foltz and the Public Defender System

In the late 19th and early 20th centuries, Clara Shortridge Foltz fought for access to justice for all. Known as California’s first female lawyer, she pioneered the idea of the public defender system. Her efforts culminated in the 1913 establishment of the nation’s first official public defender’s office in Los Angeles. Foltz argued that fair trials required legal representation regardless of income. Her advocacy through legislative efforts and courtroom appearances transformed criminal justice. Today, public defenders are a cornerstone of the legal system, ensuring equal representation—a principle Foltz first championed at a time when women were barely allowed in the profession.

Pauli Murray and Equal Protection Doctrine

Pauli Murray, a lawyer, activist, and later the first Black woman ordained as an Episcopal priest, made major contributions to constitutional law. Murray’s legal scholarship laid the groundwork for the argument that the Equal Protection Clause prohibits gender discrimination. Her writings, particularly Jane Crow and the Law (1965), influenced Ruth Bader Ginsburg’s strategy in Reed v. Reed. Murray co-authored the legal brief in White v. Crook (1966), which ruled that women could not be excluded from juries. Though Murray often worked behind the scenes, her intellectual leadership helped redefine constitutional equality and inspired generations of female lawyers to push the boundaries of justice.

Kathleen M. Sullivan and Supreme Court Advocacy

Kathleen M. Sullivan has built a reputation as one of the most accomplished appellate lawyers in the United States. A former dean of Stanford Law School and a constitutional law scholar, she has argued numerous cases before the U.S. Supreme Court, often at the intersection of free speech, federal power, and business regulation. Sullivan’s clients have included major corporations and high-profile institutions, reflecting her broad influence across the legal spectrum. Known for her sharp intellect and persuasive oral arguments, she is one of the few women consistently trusted with some of the nation’s most complex appellate cases. Her presence in the Supreme Court bar highlights how women continue to lead in shaping critical legal doctrines at the highest level.

Amal Clooney and International Human Rights

A leading human rights barrister, Amal Clooney has argued significant cases before international courts, including the European Court of Human Rights and the International Criminal Court. She represented Yazidi women in proceedings against ISIS commanders accused of genocide and sexual slavery. Clooney also worked on The Prosecutor v. Ali Muhammad Ali Abd-Al-Rahman, addressing crimes against humanity committed in Darfur, and represented Armenia in its case on the Armenian genocide. Her advocacy brings global attention to gender-based violence in conflict zones and the importance of accountability under international law. Clooney exemplifies how women lawyers are shaping both national and international standards of justice.