Family name ภมะธน (ภมะธน 
) , across the world, is an extremely rare last name. The last name ภมะธน is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ภมะธน | Thailand |
ชวนพิศ, and พงษ์สิทธิ์