Poland competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's twentieth appearance at the Summer Olympics, having missed the 1984 Summer Olympics in Los Angeles because of the Soviet boycott. The Polish Olympic Committee sent a total of 218 athletes to the Games, 130 men and 88 women, to compete in 22 sports.
Piotr Szczepański and Marcin Pochwała in Men's slalom C-2
Natalia Pacierpnik in Women's slalom K-1
Marek Konwa in men's cross-country race
Brazil competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's twenty-first appearance at the Summer Olympics, having missed the 1928 Summer Olympics in Amsterdam. The Brazilian Olympic Committee sent a total of 258 athletes to the Games, 136 men and 122 women, to compete in 24 sports. Brazil left London with a total of 17 Olympic medals, winning their third largest number of medals at a single games.
Brazilian President Dilma Rousseff with part of the Olympic delegation.
Marílson dos Santos in men's marathon
Clemilda Fernandes in women's road time trial
Márcio Jorge riding Josephine during the cross-country phase of the eventing