(born May 29, 1933) is an American former competition swimmer, Olympic champion, and former world record-holder.
Yorzyk represented the United States at the 1956 Summer Olympics in Melbourne, Australia.
He was the first swimmer to win the gold medal in the new 200-meter butterfly event, finishing with a time of 2:19.3 in the final.Yorzyk continued to swim competitively while he attended medical school at the University of Toronto.
He won the U.S.
AAU indoor championship in the 220-yard butterfly in 1958.
He was awarded the university's Bickle Prize as its outstanding student-athlete in 1958 and 1959.Yorzyk was inducted into the International Swimming Hall of Fame as an "Honor Swimmer" in 1971.