Dave Magnum (born December 25, 1962) is a former political candidate in Wisconsin.
He was born in Wisconsin Dells, Wisconsin. He attended the University of Wisconsin-Madison. Originally born with the last name Weiss, he was given the name Magnum after being hired at WIBA-FM in Madison, Wisconsin. He eventually legally changed his name.
Magnum twice ran for the United States House of Representatives from Wisconsin's 2nd congressional district. First, in 2004 after defeating Ron Greer in the Republican primary. Second, in 2006 after having faced very little opposition in the primary election. He lost both times in the general election to incumbent Tammy Baldwin.