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.

At the 2012 Summer Olympics Parade of Nations of the 2012 London Olympics, athletes and officials from each participating country paraded into the Olympic Stadium preceded by their national flag to the sound of iconic British modern music. Each flag bearer was chosen by each nation's National Olympic Committee or by the delegation of athletes.