Ivan Arnold Nestingen (September 9, 1921 – April 24, 1978) was Mayor of Madison, Wisconsin. He held the office from 1956 to 1961.
Born in Sparta, Wisconsin, Nestingen served in the United States Army during World War II. He received his bachelors and law degrees from the University of Wisconsin–Madison and practiced law in Madison, Wisconsin. He served on the Madison Common Council 1951-1954. He served in the Wisconsin State Assembly as a Democrat from 1955 until April 16, 1956 when he resigned to become Mayor of Madison, Wisconsin. Nestingen served as Under Secretary of the United States Department of Health, Education and Welfare 1961-1965.
- ^ "Ivan A. Nestingen". Political Graveyard. Retrieved 2011-11-19.
- ^ 'Wisconsin Blue Book 1956,' Biographical Sketch of Ivan A. Nestingen, pg. 39
- ^ 'Geraldine "Jerry" Nestingen, volunteer,' Washington Post, Adam Bernstein, November 5, 2010