45 countries haven't taken part in the Olympic.
100
104012
205 countries
as it stands 48590 women have taken part
204 countries
There are 204 nations, countries, or National Olympic Committees as they are called
There are 205 countries participating in the 2012 Olympics.
204 (estimated).
14
14 nations participated in 1896 olympics.
A total of 11099 athletes from 202 countries and regions across the world took part in the 28th Olympics.