William C. Dix is a Republican politician and farmer from Shell Rock, Iowa. He was formerly the Majority Leader of the Iowa Senate representing Senate District 25, which covers Butler, Grundy, Hardin, and Story Counties. He served as the Chair of the Rules and Administration Senate Committee. He resigned from the Iowa Senate on March 12, 2018, following the release of video footage showing Dix, who is married with three children, kissing a lobbyist at a bar in Des Moines, Iowa.