Here is a link to the map for participating countries, I looks like everyone is competing, however there are some countries that only have one athlete competing. China and the US have the most competing athletes.
At this stage it would be not certain as to which countries will compete. That will only become clear when the 2012 Olympics come closer. A lot can happen in the next 4 years that could determine who will attend them.Answer #2204 countries are participating in 2012 summer Olympics.
The Caribbean island of Dominica has only two athletes competing in Beijing at the 2008 Olympics. It is the smallest team.
Only about half the countries on Earth have any athletes at all in the 2014 Olympics, so it's a hundred-way tie for fewest.
Europe had the most countries competing in the 2010 Olympics with 49 of its 51 countries competing. Kosovo does not compete as it has only claimed independence in 2008 and has yet to be fully recognized. The Vatican does not have a National Committee for the Olympic Games and thus does not compete.
there is mountain biking in the olympics, there is only xc at the moment though
Only men were allowed to compete in the Ancient Olympics and they didn't wear anything while competing, they went naked.
China has 396 athletes competing in 23 sports; equestrianism, football and handball are the only sports for which China has no representation in the 2012 Olympics.
THERE ARE NOT 193 COUNTRIES!!! 205 countries out of around 240 have been granted olympic status. Please contact me with whatever source of information you obtained 193 from so I can lose my tolerance.
Handball was the only sport for which the United States had no representation at the 2012 Summer Olympics.
10 each in the men's and women's competitions.
there is 205 countries in the Olympics there is 205 countries in the Olympics