| Carl Kōppen | |
| Birth Date: | 23 August 1833 |
| Birth Place: | Bückeburg, Lower Saxony |
| Death Place: | Neumünster, Germany |
Carl Köppen (23 August 1833 - 28 June 1907) was a German military advisor active in Japan at the start of the Meiji era.
A member of the Schaumburg-Lippe Jäger Battalion who rose rapidly through the ranks, Köppen was invited to teach in Japan as a foreign advisor providing training to troops loyal to the Kishū Domain.[1] Based at Wakayama Castle between 1869 and 1871, Köppen specialized in Prussian Army drills and the use of the Doersch and von Baumgarten Needle gun.[2]