Surname วัฒนวิโรจน์กุล (วัฒนวิโรจน์กุล 
) , in all the world, is a very rare cognomen. The cognomen วัฒนวิโรจน์กุล is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| วัฒนวิโรจน์กุล | Thailand |