Alfred Georg Mickler (September 7, 1892 – June 14, 1915) was a German track and field athlete who competed in the 1912 Summer Olympics.In 1912 he was eliminated in the first round of the 1500 metres competition.
He was also a member of the German team which was eliminated in the first round of the 3000 metres team race by Sweden.
He was killed in action during World War I.