Last name วังหน้า (Wangnai 
, Wangna 
, วังหน้า) , around the world, is a rare cognomen. The cognomen วังหน้า is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Likewise, วังหน้า is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wangnai | United States, Thailand, India, China |
| Wangna | Thailand, Brazil, United States, India, China |
| Wungkhaw | Thailand |