Cognomen Deltuvas (Deltuvas 
) , in the world, is a rare family name. The last name Deltuvas is characteristic of Lithuania, where it is quite a rare surname, Estonia, where it is a rare surname, and Germany, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Deltuvas | Lithuania, Estonia, Germany |
| romualdas deltuvas LT (b. 1943) |
|