Family name วงศ์สุทธิโกศล (วงศ์สุทธิโกศล 
) , in the world, is a very rare cognomen. The family name วงศ์สุทธิโกศล is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| วงศ์สุทธิโกศล | Thailand |