Karl-Heinz Langer (19 April 1914 – 6 May 1955) was a Luftwaffe ace and recipient of the Knight's Cross of the Iron Cross during World War II. The Knight's Cross of the Iron Cross was awarded to recognise extreme battlefield bravery or successful military leadership. During his career he was credited with 30 aerial victories in 486 missions, 10 on the Western Front and 20 on the Eastern Front.