The Historic Michigan Boulevard District is a historic district in the Loop community area of Chicago in Cook County, Illinois, United States encompassing Michigan Avenue between 11th or Roosevelt Road, depending on the source, and Randolph Streets and named after the nearby Lake Michigan. It was designated a Chicago Landmark on February 27, 2002. The district includes numerous significant buildings on Michigan Avenue facing Grant Park. In addition, this section of Michigan Avenue includes the point recognized as the end of U.S. Route 66. This district is one of the world's best known one-sided streets rivalling Fifth Avenue in New York City and Edinburgh's Princes Street. It lies immediately south of the Michigan–Wacker Historic District and east of the Loop Retail Historic District.

Michigan Avenue is a north-south street in Chicago that runs at 100 east on the Chicago grid. The northern end of the street is at Lake Shore Drive on the shore of Lake Michigan in the Gold Coast Historic District. The street's southern terminus is at Sibley Boulevard in the southern suburb of Dolton, but like many other Chicago streets, it exists in several disjointed segments.