Brian Desmarais is an associate in the Litigation Department and a member of the Antitrust Group.

Mr. Desmarais joined Debevoise in 2023. He previously was an antitrust associate at an international firm, and was an Associate General Counsel at L’Oreal USA. Mr. Desmarais received a J.D. from New York University School of Law in 2016. He received his B.A. from Boston University in 2011. Mr. Desmarais is a member of the Bar of the State of New York and is admitted to appear before the Southern District of New York.


  • New York University School of Law, J.D.
  • Boston University, B.A.

Bar Admissions

  • New York