Family name ทำดี (Begood 
, Thamdi 
, ทำดี) , in all the world, is a rare cognomen. The last name ทำดี is habitual in France, where it is a very rare surname, Australia, and Thailand. Measured by absolute frequency, it is commonest in Indonesia, France, and Thailand. Likewise, ทำดี is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Begood | Australia, France, Democratic Republic of the Congo, Indonesia, United States |
| Thamdi | Nigeria, Thailand, Malaysia, South Africa, India |