The Ishpeming–Negaunee Unions was the final moniker of the minor league baseball teams based in Ishpeming and Negaunee, Michigan.
The Calumet Red Jackets, Hancock, Houghton and Marquette Undertakers teams joined Ishpeming and Negaunee in beginning league play.
With a final record of 24–30, playing under manager Jim Tray, Ishpeming finished 8.0 games behind the first place Calumet Red Jackets.
The Green Bay, Marinette Badgers, Marquette Undertakers, Menominee and Oshkosh Indians teams joined Ishpeming–Negaunee in league play.
Today, it is reported the ballpark site lies along the Iron Ore Heritage Trail, which runs between Ishpeming and Negaunee.