Surname เตชะธรรม (Techatham 
, Techadham , Techathum ) , globally, is a very rare last name. The last name เตชะธรรม is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More frequently, เตชะธรรม is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Techadham, เตชะธรรม, Techatham, Techathum | Thailand |
Taechatham, Taechathum, Taychatham, and Teachatham