Wilhelm Crinius (2 December 1920 – 26 April 1997) was a German Luftwaffe fighter ace 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. Crinius is credited with 114 aerial victories claimed in approximately 400 combat missions. He recorded 100 victories over the Eastern front. Of his 14 victories claimed over the Western front, one was a four-engined bomber. On 23 September 1942, Crinius became the only German fighter pilot to be awarded the Knight's Cross of the Iron Cross (Ritterkreuz des Eisernen Kreuzes) and the Knight's Cross of the Iron Cross with Oak Leaves (Ritterkreuz des Eisernen Kreuzes mit Eichenlaub) simultaneously.