Ernst-Wilhelm Reinert (2 February 1919 – 5 September 2007) was a German former Luftwaffe fighter ace and recipient of the Knight's Cross of the Iron Cross with Oak Leaves and Swords during World War II. A flying ace or fighter ace is a military aviator credited with shooting down five or more enemy aircraft during aerial combat. The Knight's Cross of the Iron Cross and its higher grade Oak Leaves and Swords was awarded to recognise extreme battlefield bravery or successful military leadership.