Last name Kwuan (Kwuan 
) , around the world, is a rare surname. The last name Kwuan is habitual in Malaysia, where it is a rare surname, South Korea, and New Zealand, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Malaysia, South Korea, and Indonesia. Much less frequently, Kwuan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kwuan | Indonesia, South Korea, Malaysia, United States, New Zealand |