Downtown Auburn Historic District is a national historic district located at Auburn, DeKalb County, Indiana.

Notable buildings include the DeKalb County Courthouse (1911-1914), Henry Opera House (1917), DeKalb County Jail (1918), Commercial Club (1917), Auburn City Hall (1913), South Interurban Station (c. 1910), Dilgard Building (c. 1920–1930), Y.M.C.A.

Building (193-1914), Auburn Hotel (1922), U.S. Post Office (1934), and Masonic Temple (c.

[2] It was added to the National Register of Historic Places in 1986.

This article about a property in DeKalb County, Indiana on the National Register of Historic Places is a stub.