Last name Сёмченко (Сёмченко 
) , worldwide, is a very rare cognomen. The surname Сёмченко is habitual in Belarus, where it is a rare surname, Kazakhstan, and Kyrgyzstan, where it is a very rare surname. Very seldom, Сёмченко is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Сёмченко | Kyrgyzstan, Kazakhstan, Russia, Belarus |
Semchenko, Semtchenko, and Syomchenko