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 buildings and architecture of Chicago reflect the city's history and multicultural heritage, featuring prominent buildings in a variety of styles. Most structures downtown were destroyed by the Great Chicago Fire in 1871.