Surname Rudyko (Rudyko 
, Рудыко 
) , all over the world, is a rare cognomen. The family name Rudyko is habitual in Belarus, where it is a rare surname, Russia, where it is a very rare surname, and Germany, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Rudyko | Germany, Spain |
| Рудыко | Russia, Belarus |