Cognomen Bayubay (Bayubay 
) , in the world, is quite a rare family name. The cognomen Bayubay is characteristic of Philippines, where it is quite a rare surname, United Arab Emirates, where it is a rare surname, and Hong Kong. Not in comparison with a country's population, the name is most common in Philippines, Saudi Arabia, and United Arab Emirates.
| VARIANT | COUNTRY |
|---|---|
| Bayubay | Hong Kong, Philippines, United Arab Emirates, United States, Saudi Arabia |