Surname Bayai (Bayai 
) , all around the world, is a rare cognomen. The family name Bayai is characteristic of Tanzania, where it is a very rare surname, Malaysia, and Nigeria. Not in comparison with a country's population, it is commonest in Tanzania, Nigeria, and India. Likewise, Bayai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bayai | Tanzania, South Africa, India, Nigeria, Malaysia |