Cognomen Pergegaj (Pergegaj 
) , worldwide, is a very rare family name. The family name Pergegaj is habitual in Croatia, where it is a very rare surname, Greece, and Canada, where it is an extremely rare surname. Measured by absolute frequency, it is the most numerous in Greece, Croatia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Pergegaj | United States, Canada, Greece, Croatia |