Last name Dvorko (Dvorko 
) , throughout the world, is a very rare family name. The surname Dvorko is habitual in Estonia, where it is a rare surname, Russia, where it is an extremely rare surname, and Ukraine. Measured by absolute frequency, it is the most numerous in Russia, Estonia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Dvorko | Ukraine, Russia, Estonia, United States |