Winn Allen is a litigation partner in Kirkland & Ellis LLP’s Washington, D.C., office. He has extensive experience litigating complex commercial cases in a broad array of subject areas, including antitrust, products liability, class-action defense, defamation, consumer fraud and contractual disputes. Winn has handled numerous, high-profile litigation matters for clients such as Meta, UnitedHealth Group, Carrier, Fox Corporation, Caterpillar, Accenture, Honeywell and Wyndham Hotels.

Winn has received broad recognition for the quality of his advocacy. The American Lawyer has recognized Winn as “Litigator of the Week” on four separate occasions for significant victories on behalf of UnitedHealth, Honeywell, Meta and the State of Georgia. In 2020, The National Law Journal recognized Winn as a D.C. Rising Star. The National Law Journal has named him a “Litigation Trailblazer,” Benchmark Litigation has repeatedly recognized him for his commercial litigation work, and in 2019, the Supreme Court of the United States appointed Winn to brief and argue a case before the Court.

Before joining Kirkland, Winn served as a law clerk to Justice Samuel A. Alito, Jr. of the Supreme Court of the United States and Judge Jeffrey S. Sutton of the United States Court of Appeals for the Sixth Circuit.


Thought Leadership

Press Mentions

Quoted in “Kirkland Associates Steer Win In Ex-State Dept. Worker Suit,” Law360, April 15, 2022

Quoted in “Litigators of the Week: The Kirkland Team Who Helped UnitedHealth Beat Back DOJ’s Antitrust Challenge to a Health-Tech Deal,” ALM, September 23, 2022


Recognized in Benchmark Litigation as a “Future Star” for Appellate and General Commercial, 2019–2024

Recognized in Lawdragon’s “500 Leading Litigators,” 2024

Recognized by Law360 as a “Rising Star,” 2023

Recognized in Benchmark Litigation’s “40 & Under Hot List,” 2016–2023

Recognized by The National Law Journal as a “D.C. Rising Star,” 2020 

Recognized by The American Lawyer as “Litigator of the Week,” 2019

Recognized in The National Law Journal’s “Litigation Trailblazers” list, 2018

Recognized twice by The American Lawyer as “Litigator of the Week,” 2017

Recognized in The Legal 500 U.S. for Commercial Litigation, 2015


Admissions & Qualifications

  • 2010Georgia
  • 2011District of Columbia


  • University of Virginia School of LawJ.D.2008

    Faculty Award for Academic Excellence (Highest GPA in Graduating Class)

    Jackson Walker LLP Award

    Order of the Coif

    Virginia Law Review, Articles Editor

  • Georgetown UniversityB.A.magna cum laude2005