Surname Kim Thanh (Kim Thanh 
) , in the entire world, is a rare last name. The cognomen Kim Thanh is characteristic of South-eastern Asia, particularly Vietnam, where it is a rare surname. More prevalently, Kim Thanh is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kim Thanh | Canada, Japan, Vietnam, Taiwan, Australia |