Family name Blazauskas (Blazauskas 
) , in the entire world, is a rare last name. The surname Blazauskas is habitual in Northern Europe, particularly Lithuania, where it is quite a rare surname, Estonia, where it is a rare surname, and Norway, where it is a very rare surname. In absolute terms, it is the most numerous in Lithuania, the United States, and Estonia.
| VARIANT | COUNTRY |
|---|---|
| Blazauskas | Norway, Canada, United States, Lithuania, Estonia |