The Richard B. Ogilvie Transportation Center, on the site of the former Chicago and North Western Terminal, is a commuter rail terminal in downtown Chicago, Illinois. For the last century, this site has served as the primary terminal for the Chicago and North Western Railway and its successors Union Pacific and Metra. Intercity services had disappeared by the 1970s, but commuter services on the three ex-CNW mainlines, Metra's UP District lines, continue to terminate here. The tracks are elevated above street level. The old CNW terminal building was replaced in the mid 1980s with a modern skyscraper, the 500 West Madison Street building. The modern building occupies two square city blocks, bounded by Randolph Street and Madison Street to the north and south and by Canal Street and Clinton Street to the east and west. It is the second busiest rail station in Chicago, after nearby Union Station, the sixth-busiest railway station in North America, and the third-busiest station that exclusively serves commuter traffic.

The Chicago and North Western was a Class I railroad in the Midwestern United States. It was also known as the "North Western". The railroad operated more than 5,000 miles (8,000 km) of track at the turn of the 20th century, and over 12,000 miles (19,000 km) of track in seven states before retrenchment in the late 1970s. Until 1972, when the employees purchased the company, it was named the Chicago and North Western Railway.