Surname Slabosevicius (Slabosevicius 
) , all over the world, is a very rare last name. The surname Slabosevicius is characteristic of Lithuania, where it is a rare surname, Argentina, where it is a very rare surname, and Canada, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Slabosevicius | Canada, Lithuania, Argentina, United States |