Joe Knollenberg, American soldier and politician
Joseph Kastl Knollenberg (November 28, 1933 – February 6, 2018) was an American politician from Michigan. From 1993 to 2009, he was a Republican member of the U.S. House of Representatives, representing Michigan's 9th congressional district and Michigan's 11th congressional district.

In his congressional term, Knollenberg was known as a staunch supporter of the North American Free Trade Agreement, President George W. Bush's stance on protecting manufactured goods and for voting against expanding SCHIP in the later years of his career.He was defeated by Gary Peters in the 2008 election by a margin of 52% to 43%.