Surname คูเมตตาธรรม (คูเมตตาธรรม 
) , in the world, is an extremely rare cognomen. The family name คูเมตตาธรรม is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| คูเมตตาธรรม | Thailand |