Samuel Wanjiru in the Olympic Modern Marathon.
The last gold medal of the Beijing Olympics went to Samuel Wanjiru (Kenya) for the Men's Marathon
2008 summer: Micheal felps 2010 winter: Sean white
1912
Ben Ainslie in sailing at the 2000, 2004, and 2008 Summer Games.
Not only did she fail to medal, she was dead last in the final.
France
At the 2008 Games in Beijing, the United States (Phil Dalhausser and Todd Rogers).
2012 london olympics
None. The last Olympics were in 2008.
2010 Olympics in Vancouver. Canada won 14 Gold medals, setting two records.
She got the silver medal on the floor exercise, the team competition and the all-around competition, and on her last even (the balance beam) she pulled through and got the gold medal!
Andy Murray won the gold medal for men at the 2012 London olympics. Although he is from Scotland his medal counted toward the Great Britain total-- a first gold medal in this sport!