Cognomen อดุลสุทธิกุล (อดุลสุทธิกุล 
, Adulsuthikul , Adulsutthikul) , all over the world, is a very rare surname. The last name อดุลสุทธิกุล is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| อดุลสุทธิกุล, Adulsuthikul | Thailand |
| ศิวกร อดุลสุทธิกุล Thai singer, TH (b. 1998) |
|