Surname เป็นธรรม (Fair 
, เป็นธรรม 
) , around the world, is a common last name. The surname เป็นธรรม is habitual in Bahamas, where it is quite a rare surname, the United States, and Canada. Not in comparison with a country's population, this name is the most popular in the United States, the United Kingdom, and Canada. Much less frequently, เป็นธรรม is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fair | Canada, Egypt, United Kingdom, United States, Indonesia |
| เป็นธรรม | Thailand |