Family name วุฒากาศ (วุฒากาศ 
, Woonkrad, Wutthawan ) , in the world, is a very rare last name. The last name วุฒากาศ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, วุฒากาศ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wutthakul, Wutthawan, วุฒากาศ | Thailand |
Utthadakorn, Vutichat, Woudikrai, Wuthakars, Wuttha, Wutthachai, Wutthachusin, Wutthanatum, Wutthanu, Wutthaphan, Wutthara, Wutthayakorn, Wutthiked, and Wuttlkorn