Tadhg A.J. Dooley


Tadhg is Counsel in the firm’s Litigation Department. His practice focuses on appellate and complex civil litigation. He has extensive experience handling appeals in state and federal courts throughout the country and has obtained favorable results for a diverse range of clients, including prisoners, foreign presidents, big companies, and small towns. Along with Wiggin and Dana attorney Ben Daniels, Tadhg runs the Appellate Litigation Project at Yale Law School, teaching principles of appellate practice and procedure and supervising students representing indigent clients in the U.S. Courts of Appeals for the Second and Third Circuits. He has been recognized by New England SuperLawyers as a "Rising Star" in the field of appellate litigation and by the Connecticut Law Tribune as a “New Leader in the Law.”

Tadhg joined Wiggin and Dana following a clerkship with Judge José A. Cabranes of the U.S. Court of Appeals for the Second Circuit. He previously clerked for Judge Robert N. Chatigny of the U.S. District Court for the District of Connecticut. Between his clerkships, Tadhg worked as an associate at Ellis & Winters LLP in Raleigh, North Carolina, where his practice focused primarily on the needs of university clients.

Tadhg earned his J.D. with honors from Duke University School of Law, where he was Executive Editor of the Journal of Law & Contemporary Problems and the winner of the Dean's Cup Moot Court Competition. He received his B.A. summa cum laude from Boston University.

Tadhg has devoted a significant portion of his practice to pro bono matters at the trial and appellate levels. He was honored by Connecticut Legal Services in 2014 for his successful representation of a single mother in a federal defamation suit and received Wiggin and Dana’s 2012 Pro Bono Achievement Award in connection with his successful appeal of an Espionage Act sentence in the Second Circuit. He is the Treasurer of Connecticut Legal Services.


  • Duke University School of Law  (J.D., 2008)
    • cum laude
  • Boston University  (B.A., 2003)
    • summa cum laude

Bar Admissions

  • Connecticut
  • New York

Court Admissions

  • US Court of Appeals for the Second Circuit
  • US Court of Appeals for the Third Circuit
  • US Court of Appeals for the Sixth Circuit
  • US Court of Appeals for the Eleventh Circuit
  • US District Court (District of Connecticut)
  • US Supreme Court

Memberships and Affiliations

  • Connecticut Bar Association
    • Federal Practice Section, Appellate Section
  • American Bar Association
    • Appellate Practice Section
  • Connecticut Legal Services
    • Treasurer