John Nygren (born February 27, 1964) is an American insurance and financial services agent, politician, and lobbyist. A Republican, he was a member of the Wisconsin State Assembly for nearly 14 years, serving from January 2007 to December 2020. He was co-chair of the powerful Joint Finance Committee from 2013 until his sudden resignation on December 1, 2020. He now works as executive director for the Wisconsin Association of Health Plans, a state lobbying organization for health insurance companies. Prior to holding public office, he was President of the United States Junior Chamber youth organization.