USS Laburnum (1864) was a steamer acquired by the Union Navy during the American Civil War. She was used by the Navy as a tugboat and dispatch boat to serve Union ships on blockade duty. Lion, a screw tug built at Philadelphia, Pennsylvania, in 1864, was purchased by the Navy 24 June 1864, renamed Laburnum, and commissioned at Philadelphia Navy Yard 7 July 1864, Acting Master A. A. Owens in command.