John Nygren (born February 27, 1964) is an American insurance and financial services agent, former restaurateur, and Republican politician from Marinette, Wisconsin.
He has served as a member of the Wisconsin State Assembly's 89th Assembly District (portions of Marinette, Oconto and Brown counties) since 2007.
At the beginning of the 2013–2014 legislature, Nygren was named the Assembly Co-Chairman of the Joint Committee on Finance.