Last name คณาธรรม (Kanatham 
, คณาธรรม , Khanatham 
) , in all the world, is a rare cognomen. The last name คณาธรรม is habitual in Thailand, where it is a very rare surname, India, where it is an extremely rare surname, and the United States. Much less frequently, คณาธรรม is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kanatham | India, Thailand |
| คณาธรรม | Thailand |
| Khanatham | United States, Thailand |