Roger B. Wilson (born October 10, 1948) is an American politician who was Governor of Missouri from October 17, 2000 to January 8, 2001. He is a Democrat, and in August, 2004, became Chairman of the Missouri Democratic Party after endorsing Claire McCaskill in her ultimately successful bid to unseat incumbent Governor Bob Holden in the Democratic Primary. In January, 2007, after previously indicating he was interested in serving another two years, Wilson announced he would not seek an additional term as Chairman..