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