Charles Spangenberg (fl. c. 1862 – 1864) was an assistant topographical engineer active with the Union Army during the American Civil War. His name is attached to at least one important Civil War manuscript maps, that being a map of the Battle of Vicksburg. He may be the same Charles Spangenberg who moved with his brother Frederick Spangenberg to Woodbury Minnesota, possibly benefiting from a Civil War pension, in 1869. If so, the farmhouse he built is now on the national register of Historic places.