| Joachim Witthöft | |
| Birth Date: | 23 September 1887 |
| Birth Place: | Marienwerder, German Empire |
| Death Place: | Dalheim-Rödgen, West Germany |
| Branch: | Army (Wehrmacht) |
| Serviceyears: | 1906–45 |
| Rank: | General of the Infantry |
| Commands: | XXVII Army Corps Army Group South Rear Area (Army Group B) |
| Battles: | World War II |
| Awards: | Knight's Cross of the Iron Cross |
Joachim Witthöft (23 September 1887 – 7 July 1966) was a German general during World War II. He was a recipient of the Knight's Cross of the Iron Cross. Witthöft commanded Army Group South Rear Area (as Army Group B) during the 1942 Wehrmacht's campaign.
Like other Army Group Rear Areas, the territories under Witthöft's control were the sites of mass murder during the Holocaust and other crimes against humanity targeting the civilian population. Rear Area commanders operated in parallel, and in cooperation, with the Higher SS and Police Leaders appointed by the head of the SS, Heinrich Himmler, for each of the army group's rear areas. In the words of historian Michael Parrish, these army commanders "presided over an empire of terror and brutality".