High Quality Content by WIKIPEDIA articles! This is a list of nations, as represented by National Olympic Committees (NOCs), that have participated in the Summer Olympic Games between 1896 and 2008. As of the 2008 Games in Beijing, all of the current 205 NOCs have participated in at least one edition of the Olympic Games, and athletes from Australia, France,Great Britain, Greece, and Switzerland have competed in all twenty-six Summer Olympic Games.