William Patrick Kenney (born January 20, 1955 in San Francisco, California) is a retired quarterback who spent 9 years in the National Football League with the Kansas City Chiefs from 1980 to 1988 and a former politician who spent 8 years as a Missouri State Senator. Kenney was originally drafted by the Miami Dolphins in the 12th round of the 1978 NFL Draft with the final selection, making him "Mr. Irrelevant".