Family name แซ่ว (Saeo 
, แซ่ว) , around the globe, is a very rare cognomen. The last name แซ่ว is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More frequently, แซ่ว is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Saeo | Japan, Thailand |