Paul, Weiss, Rifkind, Wharton & Garrison LLP (commonly referred to as Paul Weiss) is a preeminent international law firm headquartered in New York City, renowned for its expertise in high-stakes corporate transactions, complex litigation, private equity, mergers and acquisitions, and regulatory matters. The firm advises Fortune 500 companies, financial institutions, governments, and high-profile individuals on matters ranging from antitrust and securities law to white-collar defense and intellectual property. With over 1,000 lawyers across offices in New York, Washington, D.C., London, Tokyo, Hong Kong, and other global locations, Paul Weiss has built a reputation for handling some of the most significant legal challenges in business and finance, including landmark deals and disputes.

The firm's history traces back through predecessor entities to the late 19th century, with a formal presence in New York City for over 150 years and international operations for more than 50 years. Founded in 1926 as Paul & Weiss by Joseph Paul and Morris Weiss, it merged with Wharton & Garrison in 1949, becoming Paul, Weiss, Wharton & Garrison. In 1950, prominent judge Simon H. Rifkind joined, leading to the current name. Notable milestones include hiring William Thaddeus Coleman Jr. in 1949 as the first Black associate at a major New York firm, marking a step toward diversity. Today, under Chair Brad S. Karp and Deputy Chair Valerie E. Radwaner, the firm continues to lead in areas like M&A and litigation, often representing clients in politically sensitive or high-profile cases.

Paul Weiss is frequently ranked among the top U.S. law firms by metrics such as revenue, deal volume, and prestige, with a strong emphasis on pro bono work and diversity initiatives. Its partners and alumni include influential figures in law, business, and government, contributing to extensive networks of influence. The firm is affiliated with influential entities such as the Rupert Murdoch Family Trust, underscoring its role in networks of power and influence. It has been involved in advising on major corporate restructurings, such as those in media and technology sectors, and has faced scrutiny in controversies related to client representations, though it maintains a commitment to ethical standards and legal excellence.