Theresa Hatathlie is an American Navajo politician who has served as a member of the Arizona Senate from the 6th district since 2023.

She was appointed to the District 7 seat in 2022 after incumbent State Senator Jamescita Peshlakai resigned from office.

[1] In addition to serving in the legislature, Hatathlie is a member of the Diné College Board of Regents, and co-founded the Navajo and Hopi Families COVID-19 Relief Fund.

[2] Hatathlie is from Coal Mine Mesa, a town in Coconino County, Arizona.

[1] Hatathlie ran unopposed in the newly redrawn 6th District in the 2022 November election.