Heinrich "Heinz" Trettner (19 September 1907 – 18 September 2006) was a German general serving during World War II and from 1964 to 1966 Inspector General of the Bundeswehr. He was also a recipient of the Knight's Cross of the Iron Cross with Oak Leaves. The Knight's Cross of the Iron Cross and its higher grade Oak Leaves was awarded to recognise extreme battlefield bravery or successful military leadership. He was the last living general of the Wehrmacht.