Cognomen Денко (Денко 
) , all over the world, is a rare family name. The surname Денко is characteristic of Eastern Europe, particularly Bulgaria, where it is quite a rare surname, Russia, where it is a very rare surname, and Ukraine. Also, Денко is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Денко | Ukraine, Russia, Bulgaria |