Last name คงศิริสัจธรรม (คงศิริสัจธรรม 
) , worldwide, is an extremely rare cognomen. The family name คงศิริสัจธรรม is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| คงศิริสัจธรรม | Thailand |