Family name Kasiulevicius (Kasiulevicius 
) , all around the world, is a very rare last name. The cognomen Kasiulevicius is habitual in Lithuania, where it is a rare surname, and Brazil, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kasiulevicius | Brazil, Lithuania |
| vytautas kasiulevicius researcher |
|