Cognomen สุรพล-สมถวิล (สุรพล-สมถวิล 
) , throughout the world, is an extremely rare family name. Much more prevalently, สุรพล-สมถวิล is the forename as well as the last name. Parts of the name also exists independently as a first name สุรพล, and a first name สมถวิล.
| VARIANT | COUNTRY |
|---|---|
| สุรพล-สมถวิล | Thailand |