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