Nolan Williams is an American criminal defense attorney best known as the longtime spouse of Lani Guinier, the prominent civil rights lawyer, scholar, and professor who taught at Harvard Law School and the University of Pennsylvania. Williams and Guinier met in the 1970s through their shared involvement in civil rights and legal activism, marrying and raising two children together in New York City. As a dedicated public defender, Williams spent much of his career representing indigent clients in the Bronx, focusing on criminal defense cases and advocating for fair trials and justice system reform. Throughout his professional life, Williams maintained a low public profile compared to his wife's high-visibility academic and advocacy work, but he supported her efforts in challenging racial injustice and inequality in the legal system. The couple faced personal challenges, including Guinier's health struggles with a condition called myasthenia gravis, which Williams helped manage until her death in 2022. Williams' work in criminal defense underscores a commitment to public interest law, aligning with the broader networks of influence in civil rights and legal reform communities. No major controversies or legal issues involving Williams himself are publicly documented, though his marriage to Guinier placed him adjacent to national debates on affirmative action and voting rights during her controversial 1993 nomination to the Department of Justice. His contributions remain centered on grassroots legal aid rather than high-profile politics or business.