Mannheim is a station on Metra's Milwaukee District West Line in Franklin Park, Illinois that gets services during rush hour as a flag stop.

As of 2018, Mannheim is the 218th busiest of Metra's 236 non-downtown stations, with an average of 35 weekday boardings.

As of February 15, 2024, Mannheim is served as a flag stop by 12 trains (eight inbound, four outbound) on weekdays only.

It is just east of the large Canadian Pacific Bensenville Yard, which sits to the south of O'Hare International Airport.

This station originally served as a milk stop for the village of Mannheim, Illinois.