Patrick J. Hayden


Patrick focuses his practice on appellate and complex litigation. He represents clients in high-stakes appeals and civil litigations, with a practice spanning commercial, regulatory and constitutional matters. Patrick has drafted numerous appellate briefs and dispositive motions, argued in federal court and represented clients at depositions. Patrick served as a law clerk to US Circuit Judge Kim M. Wardlaw of the US Court of Appeals for the Ninth Circuit and US District Judge Ronnie Abrams of the US District Court for the Southern District of New York (SDNY). In 2021 and 2022, Patrick was recognized by Best Lawyers on its Ones to Watch list.

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  • Cooley Files Amicus Brief in Reproductive Rights Case Before SCOTUS 


  • Yale Law School
    JD, 2014

  • Yale University
    BA, History
    cum laude, 2008

Admissions & Credentials

New York

Rankings & Accolades

    Best Lawyers: Ones to Watch in
    America –  Securities Litigation