"Polonia" and "Polish diaspora" – terminology

Polonia” are Poles who emigrated from Poland and their descendents.

Poles living in Lithuania, Belarus, Ukraine and the Czech Republic (Zaolzie), namely lands which after 1939 ceased to be a part of the Polish state, are not “Polonia”, but simply Lithuanian, Belarusian, Ukrainian or Czech Poles.

Diaspora” is a Greek word that means representatives of a given nation residing outside their homeland.  The term “Polish diaspora” therefore refers to Polonia, as well as ethnic Poles living in Lithuania, Belarus, Ukraine and the Czech Republic.