Last name คงถาวรเจริญกิจ (คงถาวรเจริญกิจ 
) , all over the world, is a very rare cognomen. The family name คงถาวรเจริญกิจ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| คงถาวรเจริญกิจ | Thailand |