Cognomen Krataijun (Krataijun 
) , in all the world, is a very rare last name. The family name Krataijun is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Krataijun | Thailand |
Kanong, Phimchan, Wijittra, and Sirimongkol