Last name วนุช (วนุช 
, Vanuch 
) , in the entire world, is a very rare surname. The surname วนุช is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Likewise, วนุช is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| วนุช | Thailand |
| Vanuch | Thailand, Brazil, United States |
ฉิมเพ็ง, and คุณาวิวัฒน์