Cognomen Smychenko (Smychenko 
, Смыченко 
) , across the world, is a rare family name. The cognomen Smychenko is characteristic of Belarus, where it is a rare surname, Russia, and Kazakhstan, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Smychenko | Russia |
| Смыченко | Kazakhstan, Russia, Ukraine, Belarus |
| lidija ivanovna smychenko RU (b. 1964) |
|