SS Ironsides was a wooden-hulled American package freighter in service between 1864 and 1873. She was built in 1864 in Cleveland, Ohio, by either Ira Lafrinier or Quayle & Martin. She was built for John E. Turner, also of Cleveland, and operated as part of the Cleveland & Lake Superior Line. She had an identical sister ship named Lac La Belle. Ironsides operated between Cleveland and Lake Superior for a number of years, and was sold several times. In 1869, she was sold to Nathan Englemann of Milwaukee, Wisconsin, and operated between Milwaukee and Grand Haven, Michigan. In 1871, she became part of the Englemann Transportation Company.