Dirk Sandefur

Dirk Sandefur
Associate Justice of the Montana Supreme Court
In office
January 2, 2017  January 2, 2025
Preceded byPatricia O'Brien Cotter
Succeeded byKatherine M. Bidegaray
Personal details
Born (1961-10-22) October 22, 1961
Great Falls, Montana, U.S.
Political partyDemocratic
Spouse
Julie
(m. 2019)
Children3
EducationUniversity of Montana (BS, JD)

Dirk M. Sandefur (born October 22, 1961) is an American lawyer who served as an associate justice of the Montana Supreme Court from 2017 to 2025. He served for eight years as a criminal and civil deputy attorney for Cascade County, Montana, before being elected a judge on the 8th Judicial District of the Montana District Court in 2002. He ran for and won election to the Montana Supreme Court in 2016.