Family name วอ (Wo 
, Sedan 
, วอ 
) , around the globe, is a common cognomen. The surname วอ is habitual in Hong Kong, where it is quite a common surname, Macao, and Malaysia, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in China, Indonesia, and Hong Kong. Likewise, วอ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wo | Hong Kong, Myanmar, Indonesia, Malaysia, China |
| Sedan | Germany, Philippines, United States, Indonesia, Malaysia |
| วอ | Thailand |
นอ, แว, ถมยา, เตอร์, หมัดละ, ตาสวาง, จุลละโพธิ์, วิมลกาญจนา, and ศรีจันทร์