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Last name Siao (Siao
, Сяо
, เสี่ยว) , worldwide, is quite a common family name. The family name Siao is characteristic of Cayman Islands, where it is quite a common surname, Mauritius, where it is quite a rare surname, and Philippines. In absolute terms, the name is most common in Philippines, Tanzania, and Malaysia. Much less frequently, Siao is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Siao | Philippines, Tanzania, Malaysia, Taiwan, United States |
| Сяо | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |