Great Britain , represented by the British Olympic Association ( BOA ) , competed at the 2004 Summer Olympics in Athens , Greece , from 13 to 29 August 2004 with the team of selected athletes was officially known as Team GB . The British sent a wide-ranging delegation to the Games , continuing its ubiquitous presence in the Olympic games , the only country to have sent competitors to every summer and winter games since the birth of the modern Olympics in 1896 . Great Britain 's 264 athletes , 161 men and 103 women , competed in 22 disciplines throughout the two-week event . The team entered the opening ceremony behind the Union Flag carried by judoka Kate Howey . Double gold medal winner Kelly Holmes carried the flag at the closing ceremony
opening ceremony
2004 Summer Olympics opening ceremony
Great Britain at the 2004 Summer Olympics