The Illinois Prairie Path is a network of 61 miles (98 km) of bicycle trails, mostly in DuPage County, Illinois. Portions of the trail extend west to Kane County and east to Cook County. Most of the trail is categorized as rail-to-trail, meaning that the bicycle path is built atop a converted former railroad right of way. In the case of the Prairie Path, the vast majority of its routing runs on the former right-of-way of the Chicago Aurora and Elgin Railroad.

DuPage County is a county in the U.S. state of Illinois, and one of the collar counties of the Chicago metropolitan area. As of the 2020 census, the population was 932,877, making it Illinois' second-most populous county. Its county seat is Wheaton.