Anthony Nesty
Petria Thomas of Australia won gold in women's 100 meter butterfly at the 2004 Games in Athens.
Florence Griffith-Joyner won the gold medal in women's 100 meter dash at the 1988 Summer Games. Her time of 10.62 seconds is still an Olympic record.
Anthony Nesty of Suriname won the gold medal in the 100 meter butterfly at the 1988 Summer Olympics with a time of 53.00 seconds.
Dana Vollmer of the U.S
Usain Bolt won gold in 100 meters race in Olympics 2012.
Benjamin Johnson :-)Benjamin Johnson was stripped of his gold medal after he was tested positive for drugs in 1988.
Reggie Walker of South Africa won gold in the 100 meters at the 1908 Games in London.
Usain Bolt
I believe Pablo Morales (USA) won the 100 fly, but I'm not sure who won it on the women's side.
Michael Phelps won gold in the 100 meter butterfly in the 2008 Games in Beijing by .01 seconds over Milorad Čavić of Serbia. Michael Phelps won gold in the 100 meter butterfly in the 2009 Championships in Rome by .13 seconds over Milorad Čavić of Serbia.
At the 1956 Games, men swam 200 meters and women swam 100 meters in butterfly competition. The men's gold medalist was William Yorzyk of the United States in a time of 2:19.3 and the women's gold medalist was Shelley Mann of the United States in a time of 1:11.0.
Yes. Swimmer Jay Mortenson of the United States competed in three events at the 1988 Games in Seoul. He won gold in the men's 4x100 meter medley relay, finished 6th in men's 100 meter butterfly, and finished 11th in men's 100 meter backstroke.