Koehne is a surname. Koehne, or Köhne, is the North German variant of the name Kuehne, or Kühne.
People with the surname include:
Bernhard Karl von Koehne (1817–1887), Russian heraldist and numismatist Bernhard Adalbert Emil Koehne (1848–1918), German botanist Graeme Koehne (born 1956), Australian composer Jessica Koehne, American nanoscientist
References
de:Köhne