Surname วงศ์อายุวัต (วงศ์อายุวัต 
) , all over the world, is an extremely rare last name. The surname วงศ์อายุวัต is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| วงศ์อายุวัต | Thailand |