Last name ธัมมิกา (Thammika 
, ธัมมิกา , Tharmika 
) , throughout the world, is a very rare family name. The family name ธัมมิกา is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, ธัมมิกา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thammika, ธัมมิกา | Thailand |
| Tharmika | Thailand, United States, India, Canada, France |