Cognomen ใบสอ (Baiso 
, ใบสอ ) , in the world, is a rare last name. The surname ใบสอ is habitual in Georgia, where it is a rare surname, Thailand, where it is a very rare surname, and Italy, where it is an extremely rare surname. Measured by absolute frequency, the name is most common in Thailand, India, and Brazil. More frequently, ใบสอ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Baiso | Georgia, Ethiopia, Thailand, India, Brazil |
| ใบสอ | Thailand |