The Joliet Transportation Center is a multimodal mass transit center linking passenger bus routes, two Metra commuter lines, and Amtrak passenger trains in the city of Joliet, Illinois. It has replaced Joliet Union Station as the commuter and passenger train station serving Joliet. Union Station ceased to provide train service in September 2014, and a temporary station opened. Groundbreaking for the new Joliet Transportation Center took place late in 2016, with construction beginning shortly afterward. After several delays, the station officially opened on April 11, 2018.

Joliet is a city in Will and Kendall counties in the U.S. state of Illinois, 35 miles (56 km) southwest of Chicago. It is the county seat of Will County. It had a population of 150,362 at the 2020 census, making it the third-most populous city in Illinois.