Mark Andrew Spitz
Most decorated swimming, most Olympic gold medals all time, and most Olympic Gold medals in a single game.
The United States won a record 37 medals at the 2010 Winter Olympics: 9 gold, 15 silver and 13 bronze.
The country is Norway with 263 Olympic medals
The most amount of gold medals ever won at a single Olympic swimming competition was 8, and it was done by Michael Phelps of the US at the Beijing 2008 summer Olympics.
China
Canada. They won 14 Golds at the 2010 Winter Olympics.
Michael Phelps and Alexander Dityatin have both won 8 medals in a single Olympics.
Michael phelps
Yes. Her 18 Olympic medals is the most an athlete has won in the history of the modern Olympics.
Mark Spitz, winning 7 medals, then a new record. This record has since been pasted by Alexander Dityatin in 1980 and Michael Phelps in 2004 and 2008; both athletes have won 8 medals in a single Olympics. But Spitz would retain the title of most gold medals until 2008 as Dityatin won 3 gold 5 silver and a bronze in 1980. Phelps won 8 gold medals in a single Olympic game in 2008, which set a new record of most gold medals in a single Olympic.
USA with 36 bronze medals
As of the 2008 Games in Beijing, Michael Phelps holds the current record, winning 14 gold medals in the combined games of the 2004 Athens Olympics and 2008 Beijing Olympics. He holds the record for the most gold medals (8) won at a single Olympics.