Johnson, 31, has been a staple for the Badger volleyball team for the past eight years, under former coach John Cook (1997-99) and current head coach Pete Waite (1999-present). She has been to the 2000 NCAA Division I Championship game with the Badgers, as well as three regional finals. Under her guidance, Wisconsin owns three conference titles and a 212-54 record.
"We are all very sad to see Christy go, but I'm happy that she has this opportunity to become a head coach and run her own program," Waite said. "I know she was very happy here, but this move gets her closer to her family in Omaha. We all wish Christy the best of luck at Iowa State. I know she'll do well."
Johnson was an All-American setter at Nebraska in 1994 and '95 and led the Huskers to a national title in 1995.
While at Wisconsin, Johnson worked with former Badger setters Lizzy Fitzgerald, a two-time All-American, and All-American Morgan Shields, as well as current setter Jackie Simpson, who made the Big Ten All-Freshman team this season.
"We are thrilled to have one of the top young coaches in the country coming to Iowa State with such wide-ranging experience as a player and a coach," Van De Velde said.
"Iowa State has made a commitment to volleyball and the more I talked with Bruce (Van De Velde) and [senior associate athletic director Calli Sanders] the more I saw that this is a special opportunity," Johnson said.