MainStreet was a department store chain based in Chicago, Illinois, United States. The chain was launched in November 1983 by Federated Department Stores (now known as Macy's, Inc.). Throughout the 1980s, the chain expanded to twenty-nine stores in Illinois, Michigan and Minnesota. By 1988, MainStreet was sold to the Wisconsin-based chain Kohl's, which converted most MainStreet locations to Kohl's that year.