104 athletes are competing in the Olympics games for Brazil 2012
more than 10,000 athletes
none
There were 277 Canadian athletes competing at the Summer Olympic Games in London 2012. The official London 2012 site, however, has 281 athletes listed throughout all sports.
Wikipedia lists Italy as having 284 athletes competing in the 2012 Summer Olympic Games
Wikipedia lists Brazil as having 259 athletes competing in the 2012 Summer Olympic Games
Over 14,000 athletes from 205 Olympic teams and 170 Paralympic teams will be competing at the London 2012 Games.
there are 30 athletes competing in the London 2012 games.
Five Divehi athletes were selected to the team, competing only in 3 different sports.
An estimated 10,500 athletes will be competing in the 2012 Olympic Games.
The Australian Olympic Committee sent a total of 410 athletes to the Games to compete in 23 sports
Great Britain