Last name Kingwan (Kingwan 
) , in the entire world, is a very rare cognomen. The family name Kingwan is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname, and Malaysia. Much less frequently, Kingwan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kingwan | Malaysia, Thailand, Philippines, United States |