Deirdre Marie-Iha

Deirdre Marie-Iha

I love how small the legal community is. Everyone is connected to everyone else, and that makes the practice of law more personal.

With over a decade of experience in high-profile appellate matters and complex civil litigation, Deirdre has represented the State of Hawaiʻi and its agencies and officers in federal and state trial court, the Intermediate Court of Appeals, the Hawaiʻi Supreme Court, and the Ninth Circuit Court of Appeals. She has personally handled dozens of appeals, including several high-stakes appellate oral arguments, among them successful defenses of Hawaii’s Marriage Equality Act and campaign finance laws. She was also pivotal in the State’s challenge to the travel ban.

She has testified before the Hawaiʻi legislature on numerous occasions. Deirdre brings her insight into State government to her practice, focused on appeals and business litigation.


Deirdre enjoys family time with her husband and two sons either relaxing at the beach or taking in the latest kid-friendly movie release.  She is also a super-fan of the musical Hamilton – don’t ask her about it unless you are prepared to recite a line or two!


Cornell University, B.A. in History, 1996, Phi Beta Kappa
University of Colorado School of Law, J.D., 1999


California (Inactive)
U.S. District Court of Hawai‘i
Ninth Circuit Court of Appeals
United States Supreme Court


HSBA Appellate Section
Hawaii Women Lawyers