Surname Бетько (Бетько 
) , in the world, is a rare last name. The cognomen Бетько is habitual in Belarus, where it is a rare surname, Romania, and Kazakhstan, where it is a very rare surname. In absolute terms, the name is most common in Eastern Europe, particularly Belarus, Romania, and Ukraine.
| VARIANT | COUNTRY |
|---|---|
| Бетько | Kazakhstan, Russia, Romania, Belarus, Ukraine |