Last name ธนภิญโญกุล (ธนภิญโญกุล 
, Tanapinyokul , Thanaphinyokul 
) , all around the world, is a very rare cognomen. The last name ธนภิญโญกุล is characteristic of Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ธนภิญโญกุล, Tanapinyokul | Thailand |
| Thanaphinyokul | United States, Thailand |