Heinrich Georg "Heinz" Hax (24 January 1900 – 1 September 1969) was a German modern pentathlete and sport shooter who competed in the 1932 Summer Olympics and in the 1936 Summer Olympics. 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.