Edwin Flack was the first Australian male to win a gold medal in Olympics.He won a gold medal in Mens 800m race in Athens on 1896 olympics.
Michael Johnson (USA).
That was welterweight boxer Ted Morgan at the 1928 Summer Olympics in Amsterdam.
That was Ross Rebagliati of Canada in Giant Slalom at the 1998 Games in Nagano.
Ian Thorpe, 5 gold medals.
Michael Phelps (8).
Michael Phelps is this man. He won 8 gold medals in the Beijing Olympics.