Family name Vaai (Vaai 
) , in all the world, is a rare surname. The cognomen Vaai is characteristic of New Zealand, where it is a rare surname, Qatar, and Australia. Not in comparison with a country's population, it most frequently occurs in India, New Zealand, and Australia. Also, Vaai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Vaai | Australia, India, United States, Saudi Arabia, New Zealand |