All over the world, สุทธิรักษ์ (สุทธิรักษ์ 
, Suttirak 
, Sutthirak , and others...) is quite a rare epicene forename. The forename สุทธิรักษ์ is habitual in South-eastern Asia, particularly Thailand, where it is quite a rare unisex name. Also, สุทธิรักษ์ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| สุทธิรักษ์, Sutthiruk, Sutthirak | Thailand |
| Suttirak | Norway, United States, Thailand |
| Suthirak, Suttiruk | United States, Thailand |
Soodthirak, Soottiruk, Sudhirak, Sudteerak, Sudthirag, Sudthirak, Sudtirak, Sutcharuk, Sutdhiraksa, Suteerak, Suthanyarak, Suthiprak, Suthiraksa, Suthirug, Suthiruk, Suthiruksa, Suthirux, Suththiruk, Sutirak, Sutiruck, Sutiruk, Sutitrak, Suttanarak, Sutteerak, Sutthairak, Suttheerak, Suttherak, Sutthiragsa, Sutthiraks, Sutthiruck, Sutthirug, Sutthiruksa, Sutthiyrak, Sutthrak, Sutthurak, Suttirag, Suttiraksa, Suttiruck, Suttirug, Suttrak, Suttrirak, Suttthirak, and Sutunrak