William O. Birchfield (December 19, 1935 – February 5, 2016) was an American politician, lawyer, and civic leader in the state of Florida. He called himself as the "Duke of Mayo". He was born in Mayo, Florida. He served in the Florida House of Representatives for the 21st district from 1971 until his resignation in 1974.
|Member of the Florida House of Representatives for the 21st district|
|Born||December 19, 1935|
|Died||February 5, 2016 (aged 80)|
|Alma mater||University of Florida|
- Daraskevich, Joe (6 February 2016). "William O. 'Bill' Birchfield, 1935-2016: Advocate for Dames Point bridge, Skyway". Florida Times Union. Retrieved 8 February 2016.