Family name Рапай (Rapai 
, Rapaj 
, Рапай 
) , around the world, is quite a rare last name. The family name Рапай is habitual in Albania, where it is quite a common surname, Hungary, where it is quite a rare surname, and Greece. More prevalently, Рапай is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rapai | Hungary, Greece, Indonesia, United States, India |
| Rapaj | Greece, Italy, United States, Albania, India |
| Рапай | Kazakhstan, Ukraine, Russia |