Cognomen Klinkajhon (Klinkajhon 
) , all over the world, is a very rare surname. The last name Klinkajhon is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, Klinkajhon is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Klinkajhon | Thailand |