The Arkansas Post Museum is a state park and state-operated museum in Gillett, Arkansas. It is commonly confused with the Arkansas Post National Memorial, but although related, the memorial is located two miles away from the post museum. The Arkansas Post Museum is also a part of the tour of the memorial.

Also known as the Arkansas Post Museum State Park, the Arkansas Post Museum is more of an interpretation and commemoration of the natural and cultural heritage of the Arkansas Delta. It features a cluster of historic structures with displays of equally historic items and artifacts that showcase the various aspects of the history of the region. Visitors of the park can find the Main House, Pioneer Kitchen, 1877 Refeld-Hinman Loghouse, 1930s Playhouse, and the 1974 Peterson Building at the site. Each offers a unique display and amount of information to the public.