Family name วัฒนจิโรจน์กุล (วัฒนจิโรจน์กุล 
) , around the globe, is an extremely rare cognomen. The surname วัฒนจิโรจน์กุล is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| วัฒนจิโรจน์กุล | Thailand |