Surname Vlaščenko (Vlaščenko, Влашченко 
, Влащенко 
) , all around the world, is a rare cognomen. The cognomen Vlaščenko is characteristic of Ukraine, where it is a rare surname, Russia, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Влашченко | Russia |
| Влащенко | Ukraine, Kazakhstan, Russia, Belarus, Kyrgyzstan |