The Liberty Memorial, located in Kansas City, Missouri, USA, is a memorial to the soldiers who died in World War I. Groundbreaking commenced November 1, 1921, and the city held a site dedication. The memorial was completed and dedicated on November 11, 1926.

On September 21, 2006, Secretary of the Interior Dirk Kempthorne declared Liberty Memorial a National Historic Landmark.  The memorial is the home of the National World War I Museum.