Cognomen Morkevicius (Morkevicius 
) , in the entire world, is a rare last name. The family name Morkevicius is characteristic of Lithuania, where it is quite a rare surname, Argentina, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. In absolute terms, it most frequently occurs in Lithuania, Argentina, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Morkevicius | United Kingdom, Spain, Argentina, Lithuania, United States |