The Old Chicago Water Tower District is a historic district along the Magnificent Mile shopping district in the Near North Side community area of Chicago, Illinois. The district is located on both sides of North Michigan Avenue between East Chicago and East Pearson Streets. It includes the Chicago Water Tower, Chicago Avenue Pumping Station, and Chicago Fire Department Fire Station No. 98. All three structures are part of the Chicago Landmark district designated on October 6, 1971. The Water Tower and Pumping Station were jointly added to the National Register of Historic Places on April 23, 1975. In addition the Tower was named an American Water Landmark in 1969. The Water Tower was also one of the few buildings to survive the Great Chicago Fire. The district is the namesake of the nearby Water Tower Place.

The Magnificent Mile, sometimes referred to as The Mag Mile, is an upscale section of Chicago's Michigan Avenue, running from the Chicago River to Oak Street in the Near North Side. The district is located within downtown and one block east of Rush Street. The Magnificent Mile serves as the main thoroughfare between Chicago's Loop business district and its Gold Coast. It is generally the western boundary of the Streeterville neighborhood, to its east, and of River North to the west.