Surname Stagniunas (Stagniunas 
, Стагнюнас 
) , worldwide, is a very rare last name. The last name Stagniunas is habitual in Lithuania, where it is quite a rare surname, Ukraine, where it is an extremely rare surname, and the United States. Very seldom, Stagniunas is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Stagniunas | United States, Lithuania |
| Стагнюнас | Ukraine |