Kristina Marie Sandherr (born June 2, 1980) is an American educator and Democratic politician from Green Bay, Wisconsin.

Sandherr worked for Action for Healthy Kids from 2012 until 2019, when she became a program director at a Green Bay area YWCA.

[5] In December 2019, Green Bay's state representative, Staush Gruszynski, was the subject of sexual harassment accusations from an Assembly staffer.

[6] Two months later, in February 2020, Sandherr announced she would launch a challenge against Gruszynski in the Democratic primary, with the hope of replacing him in the Wisconsin State Assembly.

[11] Sandherr was married to Jon Shelton, a professor of history and Democracy & Justice Studies at the University of Wisconsin–Green Bay, until 2023.