William G. Zinkil (April 14, 1919 – 2011) was an American politician.

He served as a Democratic member for the 85th district of the Florida House of Representatives.

[2][3] He also served as a member for the 32nd district of the Florida Senate.

[1] In 1970, Zinkil was elected to represent the 85th district of the Florida House of Representatives, succeeding Richard A. Bird.

[2][3] In the same year, he was elected to represent the 32nd district of the Florida Senate, serving until 1978.