Helmut Lipfert (6 August 1916 – 10 August 1990) was a German Luftwaffe fighter ace and recipient of Knight's Cross of the Iron Cross with Oak Leaves. Lipfert ranks as the world's thirteenth fighter ace. Lipfert was credited with 203 victories achieved in 687 combat missions. All his victories were claimed over the Eastern Front and included a P-51 Mustang, 41 Yakovlev Yak-1, 41 Yakovlev Yak-9 fighters, two four-engine bombers and 39 Ilyushin Il-2 ground-attack aircraft.