Surname Naiyai (Naiyai 
) , all around the world, is a rare cognomen. The family name Naiyai is habitual in Japan, where it is a rare surname, Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. Very seldom, Naiyai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Naiyai | Japan, India, Thailand |