The Union Monument in Louisville is located in Cave Hill National Cemetery in Louisville, Kentucky. It was built in 1914 from granite, honoring unknown soldiers who fought in the Union during the American Civil War. It is in front of the large number of Union soldiers buried at Cave Hill.
The inscription on the monument reads: "In Memory of Unknown Union Soldiers in This Cemetery 1861-1865 Erected by Kentucky Comrades—1914".
The monument was one of sixty American Civil War monuments in Kentucky that were listed together on the National Register of Historic Places in 1997.