Ulrich Diesing (12 March 1911 – 17 April 1945) was a German 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. On 17 April 1945, Ulrich Diesing was killed in an accident near Boizenburg, Germany. During his career he was credited with 15 aerial victories.