William D. "Bill" Dyke was an American lawyer, judge, and politician. He was the 49th mayor of Madison, Wisconsin, from 1969 to 1973, and ran for Vice President of the United States on the American Independent Party ticket with presidential candidate Lester Maddox in the 1976 presidential election. He was also the Republican nominee for Governor of Wisconsin in the 1974 gubernatorial election. From 1996 until two months before his death, in 2016, he served as a Wisconsin circuit court judge in Iowa County, Wisconsin; he was chief judge of the 7th Judicial Administrative District from 2007 to 2013.

Madison is the capital city of the U.S. state of Wisconsin and the county seat of Dane County. As of the 2020 census, the population was 269,840, making it the second-most populous city in Wisconsin after Milwaukee, and the 80th-most populous in the United States. The Madison metropolitan area had a population of 680,796. The city is located on an isthmus and lands surrounding five lakes—Lake Mendota, Lake Monona, Lake Wingra, Lake Kegonsa and Lake Waubesa. Madison was founded in 1836 and is named after American Founding Father and President James Madison.