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Family name Bilay (Bilay
, Билай
) , globally, is quite a rare cognomen. The family name Bilay is characteristic of Senegal, where it is a rare surname, Belarus, and Philippines. Not in comparison with a country's population, this name is the most popular in India, Philippines, and Senegal. Very seldom, Bilay is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bilay | India, Senegal, Philippines, Gambia, Myanmar |
| Билай | Ukraine, Kazakhstan, Russia, Belarus, Kyrgyzstan |