For an individual, that was swimmer Michael Phelps of the United States who won 6 gold and 2 bronze for a total of 8 medals at the 2004 Games. For a country, that was the United States with 102 (36 gold, 39 silver, 27 bronze).
There was no Winter Olympics in 2004, so there was no Gold Medal winner for Men's figure skating. In 2002, Alexei Yagudin, from Russia, was the Gold Medal winner, and in 2006, Evgeni Plushenko, also of Russia, was the Gold Medal winner.
The mile run is not an event at the Olympics. The 1500 meter run is the closest event to a mile that is run at the Olympics. The 2004 gold medal winner of the 1500 was Hicham El Guerrouj of Morocco in a time of 3:34.18.
The Tale of Despereaux by Kate DiCamillo was the 2004 Newbery Medal winner.
Michael Phelps leads the USA 2012 Olympics in total medal count with 4 Gold Medals and 2 Silver Metals and was also the leading Swimming Medal winner for the 2012 Olympics and the leading Medal winner in the 2012 Olympics. 2012 is actually his worst Olympic record after his winning 8 Gold Medals in 2008 and 6 Gold and 2 Bronze in 2004. He is the all time top medalist with 22 medals including 18 Gold Medals. Larisa Latynina from the Soviet Union during the 1956-1964 Olympics won 18 total medals in Gymnastics including 9 Gold Medals and is second leading medal all time winner
Michael Phelps for becoming the all time highest medal winner of the Olympic games with 18 Gold Medals and 22 Total Medals earned. Olympic Medals earned at each games were: 2004 6 Gold 2 Bronze, 2008 8 Gold, and 2012 4 Gold and 2 Silver. He also holds the individual Highest Medal total records for an Olympic game for the 1st (2008), 2nd (2004), and 15th (2012) places
Mahe Drysdale has been in two Olympics, the 2004 Games and the 2008 Games. He did not win a medal at the 2004 Games but won a bronze medal at the 2008 Games in single sculls rowing.
Nicolas Massu won gold.
Sailing
silver medal
The U.S. basketball team won a bronze medal in the 2004 Summer Olympics.
USA team won the women's basketball gold medal in 2004 Olympics.
Romania