| Otto-Ernst Ottenbacher | |
| Birth Date: | 18 November 1888 |
| Allegiance: | |
| Branch: | Army |
| Rank: | Generalleutnant |
| Commands: | 36. Infanterie-Division XXXXI. Armeekorps XIII. Armeekorps |
| Battles: | World War II |
| Awards: | Knight's Cross of the Iron Cross |
Otto-Ernst Ottenbacher (18 November 1888 – 7 January 1975) was a German general in the Wehrmacht during World War II who commanded several corps. He was a recipient of the Knight's Cross of the Iron Cross. Ottenbacher was wounded during the opening stages of the Battle of Kalinin in October 1941, when his plane was shot down by Soviet fighters. Severely burned, he was invalided back to Germany to recuperate.
. Walther-Peer Fellgiebel . 2000 . 1986 . Die Träger des Ritterkreuzes des Eisernen Kreuzes 1939–1945 — Die Inhaber der höchsten Auszeichnung des Zweiten Weltkrieges aller Wehrmachtteile . The Bearers of the Knight's Cross of the Iron Cross 1939–1945 — The Owners of the Highest Award of the Second World War of all Wehrmacht Branches . German . Friedberg, Germany . Podzun-Pallas . 978-3-7909-0284-6.