| Karl Maria Demelhuber | |
| Birth Date: | 26 May 1896 |
| Birth Place: | Freising, German Empire |
| Death Place: | Seeshaupt, West Germany |
| Allegiance: | |
| Branch: | Waffen-SS |
| Serviceyears: | 1914–1945 |
| Rank: | SS-Obergruppenführe und General der Waffe-SS |
| Commands: | |
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Karl Maria Demelhuber (26 May 1896 – 18 March 1988) was a German SS functionary during the Nazi era.
Reaching the rank of Obergruppenführer (general) in the Waffen-SS during World War II, he commanded the SS-Standarte Germania, 6th SS Mountain Division Nord, XII SS Corps and XVI SS Corps.
. Gordon Williamson (writer). 1994. The SS: Hitler's Instrument of Terror: The Full Story From Street Fighters to the Waffen-SS. Motorbooks International. 0-87938-905-2.
Holder of the SS Führerdegen