Cognomen Wangkaji (Wangkaji 
) , all around the world, is an extremely rare surname. The surname Wangkaji is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, Wangkaji is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wangkaji | Malaysia, Thailand |