Hubertus von Bonin (3 August 1911 – 15 December 1943) was a German Luftwaffe military aviator during the Spanish Civil War and World War II, a fighter ace listed with 77 enemy aircraft shot down. He claimed four victories in the Spanish Civil War, and during World War II, 64 on the Eastern Front and nine on the Western Front. Born in Potsdam, von Bonin volunteered for service with the Condor Legion during the Spanish Civil War where he commanded the 3. Staffel (3rd squadron) of Jagdgruppe 88 (J/88—88th Fighter Group). Following service in Spain, von Bonin was posted to Jagdgeschwader 26 "Schlageter" (JG 26—26th Fighter Wing). In January 1940, he was appointed Gruppenkommandeur (group commander) of I. Gruppe (1st group) of Jagdgeschwader 54 (JG 51—51st Fighter Wing). He then served as a flight instructor before taking command of III. Gruppe of Jagdgeschwader 52 (JG 52—52nd Fighter Wing) on the Eastern Front. Von Bonin was awarded the Knight's Cross of the Iron Cross on 17 November 1942 after 51 aerial victories claimed. In July 1943, he was appointed Geschwaderkommodore (wing commander) of JG 54. Von Bonin was killed in action in aerial combat on 15 December 1943 near Haradok. Von Bonin was born on 3 August 1911 in Potsdam in the Province of Brandenburg, Kingdom of Prussia within the German Empire. He was the son of Bogislaw von Bonin and his wife Mathilde, a daughter of Adolf von Bülow. His older brother, Bogislaw served in the Army and later in the Amt Blank, a predecessor of the Federal Ministry of Defence. His two younger brothers also served in the Luftwaffe, Jürgen-Oskar was killed in action on 8 February 1942, while serving as an observer in a Tansportgeschwader (air transport wing). Another brother, Eckart-Wilhelm, became a night fighter pilot with 37 aerial victories who survived the war. In October 1932, von Bonin attended the Military School Dresden. Among his classmates were Werner Mölders, Günther Freiherr von Maltzahn, Joachim Pötter, Hans-Henning Freiherr von Beust, Arved Crüger, Gerhard Kollewe and Wolfgang Schellmann.