Hans Zierold
Hans Zierold is a retired German swimmer. He competed at the 1956 and 1960 Summer Olympics in three events in total. In 1956 he finished fifth in the 400 m and 4×200 m freestyle events, whereas in 1960 he placed seventh in the 4×200 m relay. On 14 September 1957 he set a new European record in the 200 m butterfly.
In April 1958 he fled from East to West Germany.
