Frederick W. Krez (October 22, 1899 – January 25, 1969) was an American politician and businessman.
Born in Sheboygan, Wisconsin, Krez served in the United States Marine Corps during World War I.
In 1931, Krez served in the Wisconsin State Assembly and was a Republican.
He was working in the Federal Estate and Gift Tax Division in Chicago at the time of his death, but still lived in Plymouth, Wisconsin.
This article about a member of the Wisconsin State Assembly is a stub.