Kuptz (January 1, 1898 – April 27, 1966) was an American politician and businessman.
Born in Milwaukee, Wisconsin, Kuptz served in the United States Army in Europe during World War I.
He was a deputy sheriff in Calumet County, Wisconsin.
Kuptz also was a steeple jack and later owned Kuptz Service Station.
In 1931, Kuptz served in the Wisconsin State Assembly, from Milwaukee, Wisconsin, and was a Republican.