It is only a national holiday in the USA, but citizens of other countries sometimes immitate the celebration because they like the concept.

Correction: Is Thanksgiving only celebrated in USA? It is an American tradition and usually Americans all over the world try to celebrate it in some way. When we had a lot of American teachers in Australia, they would always invite us to a Thanksgiving dinner.

yes, it's a traditional festivals in USA

Thanksgiving is the celebration of the white people stealing land from the native americans :P

No, a friend of mine said that christians in his country ( a middle eastern country ) celebrate it too but of course not the same way celebrated in the US.They won't cook turkey, instead they cook something else and celebrate it at home and churches.