Siegfried Grabert (11 January 1916 – 25 July 1942) was a highly decorated Major der Reserve in the Wehrmacht during World War II. 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. Siegfried Grabert was killed on 25 July 1942 during a commando operation to destroy a dam between Rostov and Bataisk. He was posthumously promoted to Major der Reserve and on 6 November 1943 was awarded the Oak Leaves to his Knight's Cross.