The IRB (international rugby board) recognises 94 countries in the world in their world rankings.
There are 20 countries taking part in the rugby world cup 2011.
nearly 30 countries.
103 are currently registered with World Rugby 2015
20 i think
20. Unless you mean the gay rugby World Cup which involves 12.
94 countries are now registerd with the IRB
there are 12 main countries that were involved in World War 1.
Not many countries play rugby league.