Planned maintenance will take place from 10:00 p.m. until 12:00 a.m. on both Wednesday, June 19 and Thursday, June 20. During these times, and most court applications may be unavailable for up to 30 minutes. eFS will NOT be affected. Please plan ahead.
Judge Tanya O. O’Brien


Appointed by Governor Mark Dayton on April 9, 2018. Current term expires Jan. 2021.


J.D., Mitchell Hamline School of Law
B.A., Hamline University 

Past Employment:

  • Assistant Ramsey County Attorney
  • Assistant Scott County Attorney
  • Judicial law clerk, the Honorable Lynn C. Olson and the Honorable Ellen L. Maas, Minnesota Tenth Judicial District. 

Professional and Community Activities:

  • Adjunct Professor, Mitchell Hamline School of Law
  • Secretary, Prior Lake Athletics for Youth Board
  • Volunteer, Saint George Eastern Orthodox Church, FOCUS Minnesota, La Ola Del Lago, and St. Thomas Academy