Jennifer James "Jeni" Arndt is an American politician serving as the mayor of Fort Collins, Colorado.

A native of Fort Collins, Colorado, Arndt graduated from Poudre High School.

[1][2] Arndt is a former member of the Colorado House of Representatives from the 53rd District, serving from January 7, 2015, until her resignation on April 16, 2021.

[4][5][6] On December 30, 2020, Arndt announced that she was running for mayor of Fort Collins, Colorado in the April 6, 2021, election.

[7] Arndt won the race, defeating two opponents and winning about 63% of the total votes cast.