Colleen Campbell is an associate in Mayer Brown’s Washington D.C. office and a member of the Litigation & Dispute Resolution and Supreme Court and Appellate practices. Her practice focuses on high-stakes commercial litigation, ranging from briefing dispositive motions to assisting clients with depositions and trial preparation. Prior to joining Mayer Brown, Colleen clerked for the Honorable James B. Loken on the US Court of Appeals for the Eighth Circuit.

Colleen graduated magna cum laude from Harvard Law School. During law school, Colleen was an Executive Editor for the Journal of Law and Public Policy. Colleen obtained her BA summa cum laude from Emory University, where she was elected to Phi Beta Kappa.

Areas of Focus


Emory University, BA, summa cum laude, Phi Beta Kappa

Harvard Law School, JD, magna cum laude


  • Minnesota
  • District of Columbia


  • US Court of Appeals for the Seventh Circuit
  • US Court of Appeals for the Fourth Circuit
  • US District Court for the Northern District of Illinois
  • US District Court for the District of Rhode Island