Last name Йокубаускас (Йокубаускас 
) , in all the world, is an extremely rare family name. The cognomen Йокубаускас is characteristic of Eastern Europe, particularly Russia, where it is an extremely rare surname, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Йокубаускас | Russia, Ukraine |
Jokubauskas, and Yokubauskas