William G. Plizka (December 8, 1944 – September 3, 2025) was a Republican politician and legislator from Wisconsin.Wisconsin Blue Book, 1985-86 edition, (Members of the State Legislature), page 71.

Born in Ashland, Wisconsin, Plizka graduated from Northland College in 1969. He served in the Wisconsin State Assembly for one term. He was a former member of the local school board, as well as the Ashland County Board.

He died on September 3, 2025, at the age of 80.

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