James E. Harsdorf (born November 7, 1950) is an American dairy farmer and Republican politician from the Pierce County, Wisconsin.
His sister, Sheila Harsdorf, also served in the state Legislature, representing both districts he had, and was later secretary of the same department.
He won election to the Wisconsin State Senate in 1980, defeating first-term incumbent Democrat Michelle Radosevich.
In 1996, he ran for the United States House of Representatives in the open seat for Wisconsin's 3rd congressional district.
[3] Harsdorf's younger sister, Sheila, was elected to his former assembly seat in 1988, and served in that body until 1999.