Diana Hagen

Justice, Utah Supreme Court

American Ogden, Utah

Quick Info

ProfessionJustice, Utah Supreme Court
NationalityAmerican
BirthplaceOgden, Utah

Latest News about Diana Hagen

17/04/2026

Utah Governor Spencer Cox and legislative leaders launched an independent investigation into Supreme Court Justice Diana Hagen over allegations of an inappropriate relationship with David Reymann, lead attorney in a high-stakes redistricting case. The probe followed a complaint from an associate of Hagen's ex-husband claiming her daughter found suggestive text messages, after the Judicial Conduct Commission dismissed a prior review. Hagen and Reymann have denied wrongdoing, with Hagen stating she renewed a friendship after her 2025 separation and recused herself from his cases in May 2025.

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Bio/Wiki

Full NameDiana Hagen
OccupationJurist

Educational Qualification(s)

University of Utah Quinney College of Law1998 (Order of the Coif, National Moot Court Team, Utah Law Review editorial board)

Relationships & More

Ex-HusbandTobin Hagen (separated April 2025, divorce suggested September 2024)

Career

Timeline
  • Clerked for a federal judge (early career)
  • Private practice (early career)
  • Joined US Attorney’s Office for the District of Utah (2001)
  • Appellate Chief, US Attorney’s Office (nearly 10 years)
  • First Assistant US Attorney
  • Utah Court of Appeals Judge (nearly 5 years, prior to 2022)
  • Utah Supreme Court Justice (appointed March 2022 by Gov. Spencer J. Cox)
Leadership Roles
  • President, Women Lawyers of Utah
  • President, David K. Watkiss-Sutherland II Inn of Court
  • President, Salt Lake County Bar Association
  • President, Utah Chapter of the Federal Bar Association
  • Chair, Judicial Branch Education Committee
  • Judicial liaison, Supreme Court's Office of Legal Services Innovation
  • Board of Directors, Girl Scouts of Utah
AwardsDorathy Merrill Brothers Award

Some Lesser Known Facts

1. Recused from all cases involving attorney David Reymann in May 2025
2. Subject of investigation into alleged inappropriate relationship with attorney David Reymann (denied by Hagen; originated from ex-husband Tobin Hagen; Judicial Conduct Commission decided not to pursue further)
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