The Arcadia Round Barn is a landmark and tourist attraction on historic U.S. Route 66 in Arcadia, Oklahoma. It was built by local farmer William Harrison Odor in 1898 using native bur oak boards soaked while green and forced into the curves needed for the walls and roof rafters.

The Round Barn is a place where local people and travelers on Route 66 from all over the world will encounter, explore and learn about the town’s history, especially the history of the Round Barn and Route 66. Admission is free but donations are appreciated to help with upkeep.