Last name ธัมโม (Dhammo 
, Thammo 
, Thummo ) , in all the world, is a rare family name. The last name ธัมโม is characteristic of Lesotho, where it is quite a common surname, Thailand, where it is a rare surname, and Indonesia, where it is a very rare surname. Likewise, ธัมโม is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dhammo | India, United States, Indonesia |
| Thammo | Lesotho, India, Singapore, Germany, Thailand |
| Thummo | India, Thailand |
| ธัมโม | Thailand |