Deirdre Marie-Iha headshot
Deirdre Marie-Iha
  • Counsel


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Deirdre Marie-Iha is a civil litigator and appellate practitioner with Goodsill Anderson Quinn & Stifel. Her appellate experience spans more than 15 years in both federal and state court. She has argued numerous times before the Ninth Circuit Court of Appeals, the state Intermediate Court of Appeals, and the Hawai‘i Supreme Court. Among those were her successful defenses of Hawaii's Marriage Equality Act, campaign finance laws, and the open primary election.

Prior to joining Goodsill, Deirdre practiced for more than a dozen years as a deputy attorney general at the Hawai‘i AGs office. While there she worked on numerous high-stakes and complex matters, including the furloughs during the financial crisis; the enactment and subsequent defense of the Marriage Equality Act in 2013-2015; and the Maui Hospital transfer. She was also instrumental in the State's challenge to the travel ban, Hawaii v. Trump.

Deirdre has been practicing for more than 20 years. In 2003-2004, Deirdre clerked for the Honorable Corinne K. A. Watanabe, Associate Judge of the Hawaiʻi Intermediate Court of Appeals (now retired). Prior to that, Deirdre practiced in California. She graduated from the University of Colorado School of Law in 1999. Her undergraduate degree is in History, from Cornell University, where she graduated Phi Beta Kappa.

Deirdre is the 2021 Chair of the HSBA Appellate Section, and is actively involved with the Appellate Pro Bono Project. The Appellate Pro Bono Project looks to match income-eligible pro se appellate litigants with attorneys willing to represent them pro bono in proceedings before the ICA and Hawaiʻi Supreme Court.

She is admitted to practice before all Hawai‘i state courts; the federal District Court for the District of Hawaii; the Ninth Circuit Court of Appeals; and the United States Supreme Court.


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!


  • University of Colorado School of Law, Boulder, Colorado
    • J.D. - 1999
  • Cornell University
    • B.A. - 1996
    • Honors: Phi Beta Kappa
    • Major: History

Bar Admissions

  • Hawaii, 2003
  • U.S. District Court District of Hawaii
  • U.S. Court of Appeals 9th Circuit
  • United States Supreme Court

Professional Associations

  • Chair, HSBA Appellate Section
  • Hawaii Women Lawyers
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