Jones Walker Logo
  • News & Insights
  • Professionals
  • Services
  • News & Insights
  • Professionals
  • Services

  • Firm
  • Offices
  • Careers
  • Events
  • Media Center
  • Blogs
  • Contact

  • text

Jay
O’Brien

Position
Partner
Office
Baton Rouge

Jay O’Brien is a partner in the Litigation Practice Group, where he represents clients facing complex, high-stakes commercial disputes.


Jay is a seasoned litigator who deploys his exceptional leadership skills, legal acumen, and strategic insights to help clients prevent and resolve complex commercial and regulatory disputes. A West Point graduate and former military officer, he excels at assembling and leading teams focused on delivering results and solving client problems. Jay has extensive trial experience handling billion-dollar class-action, multijurisdictional, and other bet-the-company disputes, positioning him as a formidable advocate for clients facing high-profile litigation with substantial financial and reputational consequences. Over the course of his career, he has successfully argued more than 100 federal and state appellate cases.

Jay represents clients from a broad range of industries and has particular experience advising major energy, oil and gas, and pipeline companies — including some of the world’s largest producers, refiners, and distributors — on matters involving traditional, renewable, and alternative fuel sources.

In addition to his energy clients, he advises private equity groups, investors, large banks, and other lenders. Jay has handled a number of cases involving bank lending practices, promissory notes, trusts, personal and corporate guarantees, and commercial, residential, and multiuse real estate development. An adjunct professor at the Paul M. Hebert Law Center of Louisiana State University, he taught in the area of security devices, including mortgages and secured lending practices.

Jay also has represented governmental bodies, municipalities, and nonprofit litigants in a range of matters involving education, public bid law, and healthcare. Drawing on his extensive network of former and current business, political, and community leaders, he is able to make effective connections that help his clients navigate complex issues directly and efficiently.

When not representing clients, Jay brings his skills, discipline, and precision to a wide range of community-service activities on behalf of the United Way, the YMCA, and — as a top amateur triathlete — youth sports programs.

Noteworthy

  • Chambers USA, Litigation: General Commercial (Louisiana), (listed annually since 2024)
  • The Best Lawyers in America®, Appellate Law, 2011–2017

Memberships

  • American Bar Association
  • American Inns of Court
  • Bar Association of the Fifth Federal Court, Board of Governors
  • Baton Rouge Bar Association
  • The Federal Bar Association
  • Louisiana State Bar Association, Chair, Appellate Section Rules Committee
  • Capital Area United Way, Board Member (2008–2012), Chairman (2011–2012)
  • YMCA, Board Member (2015–2017)
Baton Rouge
Suite 800
445 North Blvd
Baton Rouge, LA 70802
D: 225.248.2056
F: 225.248.3156
Emailjobrien@joneswalker.com

Education

  • Louisiana State University Paul M. Hebert Law Center
    JD, 1999
  • United States Military Academy at West Point
    BS, Nuclear Engineering, 1984

Bar Admissions

  • Louisiana

Court Admissions

  • US Supreme Court
  • US Court of Appeals for the Fourth Circuit
  • US Court of Appeals for the Fifth Circuit
  • US Court of Appeals for the Sixth Circuit
  • US Court of Appeals for the Eleventh Circuit
  • US Court of Appeals for the Federal Circuit
  • US District Court for the Eastern District of Louisiana
  • US District Court for the Middle District of Louisiana
  • US District Court for the Western District of Louisiana

Related Practices

  • Appellate Litigation
  • Banking & Financial Services
  • Education and Title IX
  • Litigation — Insurance
  • Real Estate

Related Industries

  • Banking & Financial Services Industry
  • Construction Industry
  • Energy, Environmental & Natural Resources
Related News & Insights
Type
Press Release
Title
98 Jones Walker Attorneys Ranked in Chambers USA 2025
Date
June 5, 2025
Link
Read More
Type
Press Release
Title
Jones Walker Welcomes Jay O’Brien as Litigation Partner in Baton Rouge
Date
May 21, 2025
Link
Read More
Sign Up For Alerts
© 2025 Jones Walker LLP. All Rights Reserved.
PrivacyDisclaimerAvident Advisors
A LexMundi Member

This website uses cookies to deliver a better experience. By continuing on this website, you consent to our use of cookies.