The Abraham Lincoln Memorial Garden, commonly known and referred to as the Lincoln Memorial Garden, is a self-governing 100-acre (0.4 km2) woodland and prairie garden owned by the city of Springfield, Illinois, and managed by the Abraham Lincoln Memorial Garden Foundation. The gardens are made up of two major units, the 63-acre (25 ha) Jensen section bordering Lake Springfield, and the newer 29-acre (12 ha) Ostermeier Prairie Center section. There are also 19 acres (7.7 ha) of additional buffer properties. As of April 2006, the Garden is maintained by a full-time staff of four, supplemented by more than 150 volunteers and docents.

Springfield is the capital city of the U.S. state of Illinois and the county seat of Sangamon County. The city's population was 114,394 at the 2020 census, which makes it the state's seventh most-populous city, the second largest outside of the Chicago metropolitan area, and the largest in central Illinois. Approximately 208,000 residents live in the Springfield metropolitan area.