Trey Cox

Trey Cox is Co-chair of the firm’s global Litigation Practice Group and Co-Partner in Charge of the Dallas office. Trey is a trial lawyer with a robust commercial litigation practice, representing clients from a range of industries in large, complex, high-profile business disputes.

Chambers USA notes that Trey is “consistently recognized as one of the country’s best trial lawyers,” ranking him in Band 1 in its Trial Lawyers, General Commercial Litigation, and Texas Regional Spotlight categories. Clients describe him as “a super-dynamic trial lawyer” and note “he’s incredible in court and also incredible with clients.” In 2025, Trey and the Gibson Dunn team obtained a historic jury verdict for Energy Transfer LP and Dakota Access Pipeline in a three-week trial, a victory which earned him national recognition as AmLaw’s “Litigator of the Week.”