Cognomen Bayay (Bayay 
) , all around the world, is a very rare family name. The family name Bayay is characteristic of Morocco, where it is a rare surname, Philippines, where it is a very rare surname, and Malaysia. In absolute terms, this name is the most popular in Philippines, Morocco, and Nigeria. Much less frequently, Bayay is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bayay | Malaysia, Morocco, India, Nigeria, Philippines |