Julius Keyl (8 December 1877 – 15 November 1959) was a German track and field athlete and gymnast who competed in the 1900 Summer Olympics and in the 1906 Summer Olympics. Keyl competed for the MTV Munich Club, and it was them who sent him to the 1900 Summer Olympics in Paris, he only competed in the 100 metres, where he finished last out of the four starters in his heat so didn't advance to the next round. In 1928, Keyl was part of the coaching team for the German football team competing at the 1928 Summer Olympics in Amsterdam.