JoAnn Jayne

JoAnn Jayne
Chief Justice of the Navajo Nation
In office
January 24, 2018 – July 2, 2025
Preceded byAllen Sloan (acting)
Succeeded byEleanor Shirley (interim)
Member of the Montana House of Representatives
from the 15th district
In office
January 1, 2001 – January 5, 2009
Preceded byRick Jore
Succeeded byFrosty Boss Ribs
Personal details
Born (1957-09-04) September 4, 1957
PartyDemocratic
Children1
EducationArizona State University, Tempe (BS)
University of Arizona (MS)
University of Montana (JD)

JoAnn Jayne (born September 4, 1957) is an American and Navajo lawyer and jurist who served in the Montana House of Representatives and later became the first Native American woman Justice Court Judge in Montana history. She was appointed Chief Justice of the Navajo Nation in 2017 and confirmed for a probationary term in 2018, a role she held until her permanent confirmation was denied in 2025.