Forest Park is a village in Cook County, Illinois, a suburb of Chicago, United States. The population was 14,167 at the 2010 census.
The community (formerly part of a larger town called Harlem) officially became incorporated under the name of Forest Park on April 17, 1907.From 1925 to 1931, Forest Park had a radio station with a variety of call letters. In 2007, the town held a summer-long centennial celebration. Forest Park has also held two other centennial celebrations, one in 1956 for when the first settlers came and one in 1984 for the 100th anniversary of the creation of the town of Harlem.