06-05-2010, 02:57 PM
Because they speak different languages.
I don't think there are any universal country names at all (maybe some that have a similar name in another language, but none that are exactly the same throughout every language).
Also, why is everyone posting country names in different languages? The OP didn't ask for them, he/she is asking why country names are different in different countries/languages (I'm guessing when you said "countries", you meant countries that have different languages). Monkey see, monkey do, I suppose.