Family name Рагаускас (Рагаускас 
, Ragauskas 
) , in all the world, is a rare surname. The family name Рагаускас is habitual in Northern Europe, particularly Lithuania, where it is quite a common surname, Latvia, where it is a rare surname, and Denmark. Not in comparison with a country's population, it is commonest in Lithuania, the United States, and Denmark.
| VARIANT | COUNTRY |
|---|---|
| Рагаускас | Kyrgyzstan, Kazakhstan, Ukraine, Russia |
| Ragauskas | Germany, Brazil, Denmark, United States, Lithuania |