Cognomen ธรรมภิรักษ์ (ธรรมภิรักษ์ 
, Thampirak 
, Thampiruk ) , in the world, is a rare family name. The cognomen ธรรมภิรักษ์ is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, ธรรมภิรักษ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thampiruk, ธรรมภิรักษ์ | Thailand |
| Thampirak | United States, Thailand |