Surname วิโรจนาหวานใจ (วิโรจนาหวานใจ 
) , worldwide, is an extremely rare last name. The surname วิโรจนาหวานใจ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| วิโรจนาหวานใจ | Thailand |