Cognomen Chaifoo (Chaifoo 
) , throughout the world, is a very rare last name. The surname Chaifoo is habitual in Thailand, where it is a very rare surname, and Canada, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Chaifoo | Canada, Thailand |
Julia, Prutikun, Walairat, and Ratchadaporn