Surname Unruan (Unruan 
) , all over the world, is a rare cognomen. The surname Unruan is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Very seldom, Unruan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Unruan | United States, Canada, Thailand |